Re: [Emc-users] Carving a spiral

[Sam Sokolik]

I have one of these...   cnc'ing it would be trivial..  :)

http://www.lathes.co.uk/everede/

On Sat, Apr 13, 2024 at 10:05 AM BRIAN GLACKIN 
wrote:

> Probably way to late the discussion but….
>
> In the wiki under O-word example, there is an example for a “Spirograph”
> which if my maths are right would simply be a 2d spiral.
>
> Here’s the actual cutting snippet from the wiki.
>
>
>
> (here is the actual cutting - I don't have any z in it yet)
> o250 do
> #15=[[#1+#2]*COS[#4] - [#2+#3]*COS[[[#1+#2]/#2]*#4]]
> #16=[[#1+#2]*sin[#4] - [#2+#3]*sin[[[#1+#2]/#2]*#4]]
> g1 x[#15]y[#16]f200
> #4=[#4+#5]
> o250 while [#4 LE #14]
>
> The only thing missing is adding in the Zed coordinate as the original
> poster indicated in his comments.  It is essentially a 3d helical routine.
>
> Sub-routines require some mental gymnastics to keep up with but can be a
> “stimulating “ challenge to solve especially if it results in a reusable /
> configurable tool.
>
> Bg
>
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Re: [Emc-users] Carving a spiral

[Sam Sokolik]

G33 for the win!

sam

On Wed, Apr 10, 2024 at 12:31 PM Chris Albertson 
wrote:

> Do you even need a rotory table to cut a spiral?
>
> > On Apr 10, 2024, at 12:09 AM, gene heskett  wrote:
> >
> > On 4/10/24 01:57, John Dammeyer wrote:
> >> A friend and I have been discussing exactly how to write the G-Code to
> >> create a spiral scroll.
> >> His rotary table 90:1 reduction with a 1600 micro-step motor could be
> set up
> >> to move N steps for each step of the X axis to create the spiral.  But
> that
> >> approach seems clumsy.
> >> Say I wanted to cut a scroll with a 6mm pitch using a 3mm cutter.
> >>  Without using G2 or G3 it's really just a triangle isn't it?  Move
> rotary
> >> table distance A and move X axis distance A'.  Do it in small enough
> >> increments and you get a spiral.  But I feel like I'm missing something
> >> really simple.
>
> Do you need a rotary table to cut a spiral?   It is just a series of
> locations in (x,y).  OK, if you wanted to use only (say) the X and A axis
> then you should use polar coordinates, not cartesian. The equation of a
> spiral on polar coordinates is very simple.  Then you evaluate itat many
> thousands of points and at each point write gcode to “cut to” that point.
>   You would not need the rotary table.
>
> Also why think in micro-steps and worm gear rates, you are using LCNC to
> do the kinematics, Use millimeters.
>
> I think this problem shows that in some cases you really can not write the
> gcode by hand.  FOr continous curves in (x,y) there might be 100,000 or
> more lines of code in the file, especially if you don’t do the cut in one
> pass.  You would nee towrite software to generate the g-code.   Or use
> existing software, a lot of CAD systems will do this for you
>
>
> > First, a 90/1 is quite high. I have two rotary's, both consisting of a
> 3NM 3phase stepper/servo I made by combining the 3NM motor with a 5/1 worm.
> Using a screw in the worms output hub as a single prox sensor index pulse
> generator. To calibrate a complete rev, I measure the steps by starting the
> count on the 3rd turn ans stopping the count on the 103rd turn, which gives
> me a scale*100.  Shift the decimal point 2 places left this becomes the
> scale for the axis in the .ini file.  All this math in linuxcnc is floating
> point so I can ask it for 33.333 degrees and it will run to what it thinks
> is 33.333 degrees. This stepscale:
> > STEPSCALE   = 22.222 = 1 degree
> > So one count is about 1/22.222 degrees, probably less than the
> backlash in the rvs39 worm, a pretty cheap worm.
> >
> > Currently to make one of my maple vise screws, starting at 0 degrees its
> around 60,000 degrees it turns for around 400 mm of screw that y travels.
> Then I lift the tool, turn it another 180 degrees, re lower the tool and
> bring y back to zero and b=180. Makes a perfect two start buttress thread.
> The B is turning, in perfect sync with the Y motion, at something in the
> 300 to 400 rpm range. That 3NM motor is heating but not dangerously so.
> >
> > There is no reason you couldn't lay it down to make a C drive, and
> simultaneously drive X Z & C to carve an impeller in a quite serviceable
> scroll.
> >
> > The versatility of the closed loop stepper/servo, which does EXACTLY
> what the TP tells it to do, without a PID in the path, is amazing. I have
> them rigged to e-stop linuxcnc in about a millisecond if they make an
> error, like losing a step. Tested till the cows come home, has yet to
> happen working a job. I haven't hobbed any gears, but it certainly seems
> accurate enough to do it.
> >
> >> Suggestions?
> >> Thanks
> >> John
> >>  ___
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> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >> .
> >
> > Cheers, Gene Heskett, CET.
> > --
> > "There are four boxes to be used in defense of liberty:
> > soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author, 1940)
> > If we desire respect for the law, we must first make the law respectable.
> > - Louis D. Brandeis
> >
> >
> >
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>
>
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Re: [Emc-users] Raspberry Pi5

[Sam Sokolik]

I have had good luck with the 4 but haven't updated it recently..   It
seems maybe to be on the edge graphics wise - I would think the 5 would be
perfect..  (if the latency is good)

On Tue, Apr 9, 2024 at 12:35 PM gene heskett  wrote:

> On 4/9/24 12:50, John Dammeyer wrote:
> > Hi all,
> >
> > Will the Pi5  be any better for LinuxCNC than the Pi4 with a MESA
> Ethernet
> > Controller or is the Pi4 already more than what LinuxCNC requires?
> >
> > John
> I am running a late 1940's Sheldon 11x54 first with an rpi3b, but its
> tongue was dragging on the floor, and I've not seen any evidence of that
> since switching to an rpi4b not long after it came out.
>
> I did put many of the "manual functions" in a separate 200 hz thread
> while it was still running of the 3b, and have not taken any of it out
> since swapping in the rpi4. My .hal file is available, just ask, for a
> 7i90HD & a triplet of 7i42TA's to anyone who asks.  It uses a Spinx1 to
> talk to the vfd.  This leaves the ethernet free to tend to the usual
> network stuff. Like updating the os or even browsing you-tube.
> >
> >
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
> > .
>
> Cheers, Gene Heskett, CET.
> --
> "There are four boxes to be used in defense of liberty:
>   soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
>   - Louis D. Brandeis
>
>
>
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Re: [Emc-users] WiFi & MESA

[Sam Sokolik]

They can't be on the same subnet..  ( I always set the jumpers on the mesa
card so the IP address is 10.10.10.10 as most home networks don't use
this.)  The default IP is 192.168.1. xxx range which is a common home
router range..

On Fri, Feb 23, 2024, 5:23 AM Andy Pugh  wrote:

>
>
> > On 23 Feb 2024, at 07:50, John Dammeyer  wrote:
> >
> > So the question is:  How do I tell Linux to cooperate with both the MESA
> and
> > the WiFi Dongle?
>
> I am afraid that I can’t help with the actual question, other than to say
> that it can be made to work, but in my case I have never had to do anything
> special to make it work.
>
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Re: [Emc-users] Semi OT: Variable speed DC drive for Fanuc brushed DC spindle drive

[Sam Sokolik]

And 99% of the time the B variant (brushless) drives are able to run
brushed motor.

On Sun, Feb 11, 2024, 11:24 AM Sam Sokolik  wrote:

> (that is 100a peak 400v)
>
> On Sun, Feb 11, 2024, 11:23 AM Sam Sokolik  wrote:
>
>> AMC makes some big drives...  Not too expensive.  You need to know
>> current and voltage you need...
>>
>>
>> https://www.ebay.com/itm/325566716560?hash=item4bcd49da90:g:uDMAAOSwAlhkCOUE=enc%3AAQAIwE4ooEBwZmHXPiIlAc6WRSSfqUOeKsamowG99ljllBJpOWD%2F0zzOQ9HRTcVUu1MOsi%2BxVeg0CaAXja69JFHeCAId8OImoYa6z02jpZa%2FNlcqSr1cAtk%2Biu4W9XSepLuHo99mVIvm5CKlFuN9jI%2FgnejpUxjY8%2BQBMk9mSPuYpJJbsr9RBHZvNTJ12pFAmRKFxU%2B9oKontWPkLXBmjleMDWFzmPVUvZXa5xs9cPsTl0JQ0xCn2ery9isxsEvgkDiL%2BA%3D%3D%7Ctkp%3ABk9SR6Kk7pKzYw
>>
>> On Sun, Feb 11, 2024, 11:11 AM Leonardo Marsaglia 
>> wrote:
>>
>>> Hi Roland,
>>>
>>>
>>> > I think you'd be aiming for a SCR drive, bought or self-made. They're
>>> > simple and lower cost.
>>> >
>>>
>>> In case of going the DIY route, wouldn't it be easier to use IGBTs
>>> instead
>>> of SCRs to drive the motor?
>>>
>>> El sáb, 10 feb 2024 a las 2:24, Roland Jollivet (<
>>> roland.jolli...@gmail.com>)
>>> escribió:
>>>
>>> > I think you'd be aiming for a SCR drive, bought or self-made. They're
>>> > simple and lower cost.
>>> >
>>> > Roland
>>> >
>>> >
>>> > On Sat, 10 Feb 2024 at 00:07, Leonardo Marsaglia <
>>> ldmarsag...@gmail.com>
>>> > wrote:
>>> >
>>> > > Hello guys, I hope you're doing well
>>> > >
>>> > > We just purchased a Mori Seiki SL3 lathe that's going to be
>>> > > retrofitted with LCNC because it has no control.
>>> > >
>>> > > The machine has a brushed DC spindle motor and from what they told
>>> me the
>>> > > DC drive was not working (I would like to check this but I couldn't
>>> find
>>> > > any info or manuals for this drive, the model number of the drive is
>>> > > A20B-0008-0372/02). I would like to keep this motor because I like
>>> the
>>> > idea
>>> > > of having high torque at low speeds because I plan to use a milling
>>> and
>>> > > hobbing attachment with this lathe.
>>> > >
>>> > > I'm trying to find DC speed controllers of 15 kW or so, just to take
>>> a
>>> > look
>>> > > at what it's available but it seems difficult to find something that
>>> big.
>>> > > Do you guys recommend any particular brand or source to find such a
>>> speed
>>> > > controller?
>>> > >
>>> > > Thanks as always.
>>> > >
>>> > > Leonardo
>>> > >
>>> > > ___
>>> > > Emc-users mailing list
>>> > > Emc-users@lists.sourceforge.net
>>> > > https://lists.sourceforge.net/lists/listinfo/emc-users
>>> > >
>>> >
>>> > ___
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>>> >
>>>
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>>

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Re: [Emc-users] Semi OT: Variable speed DC drive for Fanuc brushed DC spindle drive

[Sam Sokolik]

(that is 100a peak 400v)

On Sun, Feb 11, 2024, 11:23 AM Sam Sokolik  wrote:

> AMC makes some big drives...  Not too expensive.  You need to know current
> and voltage you need...
>
>
> https://www.ebay.com/itm/325566716560?hash=item4bcd49da90:g:uDMAAOSwAlhkCOUE=enc%3AAQAIwE4ooEBwZmHXPiIlAc6WRSSfqUOeKsamowG99ljllBJpOWD%2F0zzOQ9HRTcVUu1MOsi%2BxVeg0CaAXja69JFHeCAId8OImoYa6z02jpZa%2FNlcqSr1cAtk%2Biu4W9XSepLuHo99mVIvm5CKlFuN9jI%2FgnejpUxjY8%2BQBMk9mSPuYpJJbsr9RBHZvNTJ12pFAmRKFxU%2B9oKontWPkLXBmjleMDWFzmPVUvZXa5xs9cPsTl0JQ0xCn2ery9isxsEvgkDiL%2BA%3D%3D%7Ctkp%3ABk9SR6Kk7pKzYw
>
> On Sun, Feb 11, 2024, 11:11 AM Leonardo Marsaglia 
> wrote:
>
>> Hi Roland,
>>
>>
>> > I think you'd be aiming for a SCR drive, bought or self-made. They're
>> > simple and lower cost.
>> >
>>
>> In case of going the DIY route, wouldn't it be easier to use IGBTs instead
>> of SCRs to drive the motor?
>>
>> El sáb, 10 feb 2024 a las 2:24, Roland Jollivet (<
>> roland.jolli...@gmail.com>)
>> escribió:
>>
>> > I think you'd be aiming for a SCR drive, bought or self-made. They're
>> > simple and lower cost.
>> >
>> > Roland
>> >
>> >
>> > On Sat, 10 Feb 2024 at 00:07, Leonardo Marsaglia > >
>> > wrote:
>> >
>> > > Hello guys, I hope you're doing well
>> > >
>> > > We just purchased a Mori Seiki SL3 lathe that's going to be
>> > > retrofitted with LCNC because it has no control.
>> > >
>> > > The machine has a brushed DC spindle motor and from what they told me
>> the
>> > > DC drive was not working (I would like to check this but I couldn't
>> find
>> > > any info or manuals for this drive, the model number of the drive is
>> > > A20B-0008-0372/02). I would like to keep this motor because I like the
>> > idea
>> > > of having high torque at low speeds because I plan to use a milling
>> and
>> > > hobbing attachment with this lathe.
>> > >
>> > > I'm trying to find DC speed controllers of 15 kW or so, just to take a
>> > look
>> > > at what it's available but it seems difficult to find something that
>> big.
>> > > Do you guys recommend any particular brand or source to find such a
>> speed
>> > > controller?
>> > >
>> > > Thanks as always.
>> > >
>> > > Leonardo
>> > >
>> > > ___
>> > > Emc-users mailing list
>> > > Emc-users@lists.sourceforge.net
>> > > https://lists.sourceforge.net/lists/listinfo/emc-users
>> > >
>> >
>> > ___
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>> > https://lists.sourceforge.net/lists/listinfo/emc-users
>> >
>>
>> ___
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>

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Re: [Emc-users] Semi OT: Variable speed DC drive for Fanuc brushed DC spindle drive

[Sam Sokolik]

AMC makes some big drives...  Not too expensive.  You need to know current
and voltage you need...

https://www.ebay.com/itm/325566716560?hash=item4bcd49da90:g:uDMAAOSwAlhkCOUE=enc%3AAQAIwE4ooEBwZmHXPiIlAc6WRSSfqUOeKsamowG99ljllBJpOWD%2F0zzOQ9HRTcVUu1MOsi%2BxVeg0CaAXja69JFHeCAId8OImoYa6z02jpZa%2FNlcqSr1cAtk%2Biu4W9XSepLuHo99mVIvm5CKlFuN9jI%2FgnejpUxjY8%2BQBMk9mSPuYpJJbsr9RBHZvNTJ12pFAmRKFxU%2B9oKontWPkLXBmjleMDWFzmPVUvZXa5xs9cPsTl0JQ0xCn2ery9isxsEvgkDiL%2BA%3D%3D%7Ctkp%3ABk9SR6Kk7pKzYw

On Sun, Feb 11, 2024, 11:11 AM Leonardo Marsaglia 
wrote:

> Hi Roland,
>
>
> > I think you'd be aiming for a SCR drive, bought or self-made. They're
> > simple and lower cost.
> >
>
> In case of going the DIY route, wouldn't it be easier to use IGBTs instead
> of SCRs to drive the motor?
>
> El sáb, 10 feb 2024 a las 2:24, Roland Jollivet (<
> roland.jolli...@gmail.com>)
> escribió:
>
> > I think you'd be aiming for a SCR drive, bought or self-made. They're
> > simple and lower cost.
> >
> > Roland
> >
> >
> > On Sat, 10 Feb 2024 at 00:07, Leonardo Marsaglia 
> > wrote:
> >
> > > Hello guys, I hope you're doing well
> > >
> > > We just purchased a Mori Seiki SL3 lathe that's going to be
> > > retrofitted with LCNC because it has no control.
> > >
> > > The machine has a brushed DC spindle motor and from what they told me
> the
> > > DC drive was not working (I would like to check this but I couldn't
> find
> > > any info or manuals for this drive, the model number of the drive is
> > > A20B-0008-0372/02). I would like to keep this motor because I like the
> > idea
> > > of having high torque at low speeds because I plan to use a milling and
> > > hobbing attachment with this lathe.
> > >
> > > I'm trying to find DC speed controllers of 15 kW or so, just to take a
> > look
> > > at what it's available but it seems difficult to find something that
> big.
> > > Do you guys recommend any particular brand or source to find such a
> speed
> > > controller?
> > >
> > > Thanks as always.
> > >
> > > Leonardo
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> >
> > ___
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> >
>
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Re: [Emc-users] Axis direction

[Sam Sokolik]

Even the k with a discrete component 60's control had smaller numbers
towards the spindle...

On Mon, Feb 5, 2024, 1:36 PM  wrote:

>
> John,
>
> Leaving aside right or left hand rules etc, leaning your head towards
> your left shoulder shows that the relationship between the spindle and
> the carriage is the same as on a vertical mill.
> To bring the spindle closer to the carriage is a move in the -Z
> direction.
> If the argument is about the tool position, with the work in the chuck,
> tilt your head to the right and you now have the tool on the right and
> the work on the left, like a mill with the tool above (on the right) and
> work in the chuck below (on the left0. Now the movement of the tool
> towards the work is still -Z.
>
> Marcus
>
>
> On 2024-02-05 18:01, John Dammeyer wrote:
> > There's been an interesting discussion on the Unimat users list about
> > axis direction.  As usual someone can always find something on the web
> > that supports their opinion.
> > For example this one:
> > https://digit-chain.com/names-of-axes-in-cnc-machine/
> >
> > However I disagree that movement towards the rotating axis, be it the
> > chuck on a lathe or the spinning cutter in a mill spindle,  is a Z+
> > direction.  Doesn't even seem intuitive to me either.
> >
> > Now it's true that you can set the Z=0.00 position anywhere in the
> > G54... spaces depending on what you touch off on.  And then a movement
> > toward the spindle could be positive.  But in an G53 machine
> > coordinate space isn't a Z- direction towards the spinning tool or
> > part?
> >
> > That's the way I have my LCNC system and MACH system set up.  Even my
> > ELS is negative towards the lathe chuck.
> >
> > John
> >
> >
> >
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Re: [Emc-users] Capto

[Sam Sokolik]

We had gotten some 5000 line - 2 count encoders on ebay a while back.
It certainly helped..  Higher would be nicer.,.(for bigger diameter testing)

sam

On Thu, Jan 4, 2024 at 9:08 AM andy pugh  wrote:

> On Thu, 4 Jan 2024 at 13:39, gene heskett  wrote:
>
> > Humm, that may call for a higher resolution spindle encoder than I have
> > on my Sheldon,
>
> I have a resolver on the spindle of my lathe, which the Mesa 7i49
> converts into a 14-bit number, so should have enough resolution.
> (linearity of the resolver is not something that I have ever tested)
>
> But I don't quite understand why you are worrying about whether you
> can make Capto shanks on your Sheldon?
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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Re: [Emc-users] Capto

[Sam Sokolik]

and and...  If the receiver shape is just scaled along its taper - then the
work is done with the hal component..  But would we be that lucky?

sam

On Tue, Jan 2, 2024 at 6:46 PM andy pugh  wrote:

> On Wed, 3 Jan 2024 at 00:36, Sam Sokolik  wrote:
>
> > https://www.youtube.com/shorts/23bEsKMNJH0
>
> Indeed. Making Capto receivers would be an ideal way to show off with
> LinuxCNC. We just need that pesky equation.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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Re: [Emc-users] Capto

[Sam Sokolik]

Having a decently high count encoder on the spindle - you don't need a
'servo' spindle..  You can do fancy stuff like...

https://www.youtube.com/shorts/23bEsKMNJH0




> In that event, stretch the definition of spindle to include drives
> similar to the A drive on the G0704, or the B drive on my 6040.
>
> Those are both 3 phase stepper/servo's of 3nm power, both driving an
> rvs30 series worm drive for a 5/1 reduction.  These worms do have a half
> degree of backlash that may not be wholly consistent, but I'm carving
> buttress threads with them in synchronized motions, works fine.  Top
> speeds of something in the 400 rpm range.  At a speed your Z drive can
> track is a Sunday drive for that combo.
>
> We have the trig functions, and a simple multiply based on the
> remainder(mod) could easily return a triangular shape if its a sine. I'm
> positive I could come up with something on the 6040 doable with its 24k
> rev spindle and a CBN wheel. Not fast mind you, but doable. CBN is
> gawdawful $$$ and fragile in shapes and sizes I've found but it will
> "get the job done".  It is much like diamond but cuts HSS w/o destroying
> both as there is no carbon in it. Leaves no wire edge to be easily
> broken off and dulled, HSS is finished like a shaving mirror. All it
> should take is somebody better at math than me.
>
>
>
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Re: [Emc-users] PCIe parallel port card suggestion

[Sam Sokolik]

I would wait for Jon E.. I bet he has a list of working pcie with his
interfaces...

sam

On Mon, Jan 1, 2024 at 1:50 PM Tomaz T.  wrote:

> Thank you for suggestion 7I92TH is now actual version I guess?
> I'm using Universal PWM Controller from Pico, this should work OK together?
>
>
> >I'd be more inclined to change over to the MESA 7i92H and get two parallel
> >port cards with all the high end capabilities of that product for smoother
> >stepping etc.  I did and haven't looked back.
> >John
>
>
>
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Re: [Emc-users] Capto

[Sam Sokolik]

boy - there doesn't seem to be much info on that shape.. It does look like
it could be machined/ground with spindle synced motion..

Interesting..

sam

On Mon, Jan 1, 2024 at 11:30 AM andy pugh  wrote:

> Does anyone have the dimensions and profile specification for the capto
> system?
> I think that it has a 1.4 degree taper (though I don't know if that is
> included angle or half-angle) but the triangle shape is harder to
> find.
>
> I am curious whether it can be machined with spindle synched offsets
> using LinuxCNC.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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Re: [Emc-users] LinuxCNC 2.9 is Released

[Sam Sokolik]

Andy - thanks for all your work on this.  (I know it wasn't just you - but
your push really got us to the finish line..)

Thanks to everyone else who helped make this happen!

sam

On Sat, Nov 4, 2023 at 7:43 PM andy pugh  wrote:

> LinuxCNC 2.9.1 has been released
>
> (there was no 2.9.0 release)
>
> This marks a major new release of LinuxCNC.
>
> Due to the difficulty of supporting both Python3 and Python2 and
> various out-of-date libraries the 2.9 release of LinuxCNC is only
> supported in Debian Buster or later, Ubuntu Focal and later and
> Rasbian 12 and later. Furthermore we are no longer building any 32-bit
> versions of any packages.
>
> This update is recommended to all users of supported systems and
> hardware. There may be a final 2.8 release to incorporate new drivers
> and features for those unable to upgrade.
>
> Abbreviated Changelog:
> (Full changelog at:
> https://github.com/LinuxCNC/linuxcnc/blob/v2.9.1/debian/changelog
>
> Merge 150+ pull requests
> Adding Limit_Axis Component
> Added user space HAL component for publishing HAL values to a MQTT broker.
> carousel.comp: Add direct position control for stepgen and encoder modes
> Add Mesa 7I94T, 7I97T, 7I76EU, 7i96S card support
> Add scaled sum component.
> Add anglejog component.
> mesa_modbus: New Driver framework
> hal_gpio: Generic GPIO driver for any platform supporting libgpiod
> docs: Add manpage for emccalib
> halcompile: Accept hal pins of type “port”
> G71 - G72 updates
> Add OutM simple output module support
> docs - Hundreds of updates
> Fix “userspace” vs “realtime” nomenclature
> gladevcp: - Many Updates
> glcannon - Many Updates
> gmoccapy - Many, Many Updates
> hal_glib - Several Updates
> halcompile: Add command line arguments to provide compile and link flags
> halscope: Several updats
> homing: Fix for #2169 introduced #2308.
> homing.c: Apply suggested fix for #2629 and #2388 Fix suggested by
> yuyue2013
> hostmot2 bspi: sanity-check that channel echo enable matches receive
> buffer present
> interpmodule: add interpreter.active_spindle property
> interpmodule: fix “speed” property
> Issue #1232: Fixed
> Issue #1747: Fixed
> Issue #2169: Fixed
> Issue #2483. Partially ficed
> limit_axis: - New component
> mb2hal Several Updates
> qt5_graphics - Several Updates
> qtaxis - Several Updates
> qtdagon - 100+ Updates
> qtplasmac - 100+ Updates
> qttouchy -fix sample config loading error, remove MPG selection buttons
> qtvcp - 200+ updates
> qtvcp –mdi_line: fix multi axes movement Addresses Closes: #1053251
> RS274: M5 default to all spindles.
> sims: fix startup issues in axis sims
> sims: fix startup issues in qtvcp sims
> sims: update and tidy qtplasmac sim
>
> This release contains contributions from the following authors:
>
> ALatSMT Alec Ari Alexey Starikovskiy Alex Lait alkabal Allan Nordhøy
> Ambr Enzs Andreas Christoffersen André Litfin Andrew Downing
> andrewheeler82 Andrew Kyrychenko Andrii Podanenko andy pugh Arvid
> Brodin Asle Næss Benson Muite Billy Soto Bob Bond Bruno Lualdi Bryce
> Johnson ButterflyOfFire cascade256 Chad A. Woitas Chadly chris Chris
> Morley Chris Nisbet Chris Radek cnc Colten Edwards Csa söl Curtis
> Dutton d2inventory Damian Wrobel damiodj Daniel Rogge david Davide
> Cerati ddlu ddotldot DerAndere Dewey Garrett D.L Dmitry S. aka D.L D.
> Mueller Egor Komogortsev ekam230 Ernesto Lo Valvo freddii Greg Carl
> Gunnar Wolf Hakan Kaner Hannah Lau Hans Unzner Håvard F. Aasen Håvard
> Flaget Aasen Horváth Csaba htasta Ihor Oliinyk issyvarsano Jan Mrázek
> JanneK Jan Roters jb0 Jeff Epler Jérémie Tarot Jerry Trantow
> J.M.Garcia John Morris John Thornton Jose Manuel Garcia de Torres
> joseph calderon Juraj Adamkovic Kale Yuzik Klaus Naumann Leonardo
> Daniel Marsaglia luz paz Mark Markus Mark van Doesburg Martin Kaplan
> Mateusz Konieczny Matthew Johnston Matthias Michael Langer Michael
> Stellmacher mk2 Moses McKnight mwork NhanPham nicokid Nicola
> Quargentan nicolas Nikita Shubin noel Norbert Schechner oMtQB4 pc179
> Peter C Wallace Peter Müller Petr Menšík Petteri Aimonen Petter
> Reinholdtsen Phillip A Carter Rainer Stelzer Rene Hopf Rob Clegg
> Robert W. Ellenberg Robin Szemeti Roguish root rpm-build russellgower
> samcoinc Sascha Ittner Sebastian Kuzminsky simaoamorim snowgoer540
> spike Steffen Möller sundtek Sync Tim Blume Tinic Uro Toni Laiho Trần
> Ngọc Quân TRothfelder Ulices whatawhiz yohsuke zz912 Александр
> Макарчук Дмитрий トトも 大宝剑 陈浩
>
>
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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Re: [Emc-users] playing with the single channel encoder functionality..

[Sam Sokolik]

LOL - me just being me.. String together G33..   It really is amazing how
flexible the linuxcnc gcode is.   Someone was wondering about using G33 to
create an oil groove..

(that is what took me down the G33 rabbit hole..)

Although you might want to add some short G33 segments at each end to help
with the change in direction - it seems like it would work just fine..

https://www.youtube.com/shorts/vzy376NQP_U

Thanks andy - missing tooth index is a very cool feature!

sam






On Fri, Sep 29, 2023 at 7:58 AM andy pugh  wrote:

> On Fri, 29 Sept 2023 at 13:52, andy pugh  wrote:
>
> > It's not clear to me if it's now _really_ broken, or whether that is
> > what you are trying to do?
>
>
> I left the wrong link in. I was referring to this one:
>
> https://www.youtube.com/shorts/rJxvGKUHJAs
>
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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Re: [Emc-users] playing with the single channel encoder functionality..

[Sam Sokolik]

Found an issue with the missing tooth encoder functionality..   (100 line -
1 missing) It wouldn't see the index (gap) at low rpm's.  Andy fixed it!

https://www.youtube.com/shorts/rJxvGKUHJAs

On Wed, Sep 13, 2023 at 6:53 PM Sam Sokolik  wrote:

> It is pretty cool.  There my be a bug in it - or it could be me..  (there
> is a bug report on github)
>
> otherwise - it works quite awesome - Great work Andy!
>
> https://www.youtube.com/watch?v=ZYMcPxqabAo
>

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[Emc-users] playing with the single channel encoder functionality..

[Sam Sokolik]

It is pretty cool.  There my be a bug in it - or it could be me..  (there
is a bug report on github)

otherwise - it works quite awesome - Great work Andy!

https://www.youtube.com/watch?v=ZYMcPxqabAo

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Re: [Emc-users] STMBL forum

[Sam Sokolik]

This?

https://app.gitter.im/#/room/#rene-dev_stmbl:gitter.im

sam

On Sun, Sep 3, 2023 at 3:15 PM John Dammeyer  wrote:

> I've misplaced my link to the STMBL forum.
> Can someone direct me?
> Thanks
> John
>
>
>
>
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Re: [Emc-users] PLC for special purpose CNC

[Sam Sokolik]

Well...   Linuxcnc has a integrated ladder logic. (classic ladder).   You
also have the ability to write realtime components in C like language.

http://linuxcnc.org/docs/stable/html/hal/comp.html

I have retrofitted a cnc with 96 i/o and all is controlled with linuxcnc.
(both ladder and C)

sam

On Tue, Aug 15, 2023 at 8:08 AM Jean-François Simon 
wrote:

> Hi,
>
> May i ask a question, what's the common status about specialized PLC
> that supports high performance languages like C/C++, does this have any
> advantage in the CNC and special machines design and manufacturing or
> not worth the price.
>
> What's the most common approach to control systems (boards, plc ...)
> when designing a complex cnc machine.
>
> Thanks & reagards
>
> Jean-François
>
>
>
>
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Re: [Emc-users] Rigid tapping

[Sam Sokolik]

Would you ever be tapping that slow?   If you are - then yes - higher
resolution or try interpolation..  (Will that be bad in rigid tapping
reversals?  Threading on a lathe interpolation works great - but that is
one direction...). The green machine had a gear tooth encoder - about 40
ish teeth.  I never tried running it that slow rigid tapping - but I did
initially use it for non-circular boring.  It did OK at around 10 to 50 rpm
but you certainly could see the resolution in the cut..  I did rigid tap
with it - but pretty high rpm with no issues..

https://youtu.be/F7QulGiMt20

On Mon, Aug 14, 2023, 10:50 PM Chris Albertson 
wrote:

> I think with encoders that are not symmetric 50/50, you need to look only
> at the leading edges. (Or only at the trailing edges)
>
> Yes,this cuts the resulution in half but removes the nose.I think for
> somethig with a lot of rotational inertia, like a spindle, you can use
> interpolation to get all the resolution you need.
>
>
>
>
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Re: [Emc-users] Beaglebone black latency

[Sam Sokolik]

OMG - I keep forgetting you are the ELS guy!  I am glad you are here.   And
trying linuxcnc..

You know how much works goes into these things!  I have dabbled a bit in
some Arduino and such.. It is painful for me because ever time I seem to
have to relearn it.

Granted I have a pretty long history with linuxcnc (I really got into it at
the start of emc2 and HAL) but for me it really is a swiss army knife.  I
see problems that have a linuxcnc solutions :)

Just the HAL part is so powerful and flexible..

sam


On Sat, Aug 5, 2023 at 8:57 PM John Dammeyer  wrote:

> Sam,
> You are my hero when it comes to this sort of thing.  I wanted to link one
> of your RPI youtube videos but for some reason Youtube wasn't helping with
> my searches.
>
> I too have written CNC software, way back, Z80 Assembler for a laser
> cutter as a demo that the machine was capable of what the end customer
> wanted.  At that point emc1 was just getting started.
>
> And my ELS, with reasonable threading using a 1PPR spindle sensor, has
> been stable for many years and I will support it as long as I possibly
> can.  And of course it's open source.Although it's been on the back
> burner for a while, since April 2020, I used a MicroChip Automotive
> Networking Board that takes a PIM module (PIC32) and created and interface
> board to translate 3.3V signals to 5V and put them onto the correct pins of
> a PIC18F4685.  This photo is too large to attach so here's a link.
>
> http://www.autoartisans.com/ELS/AdaptorBoard-7.jpg
>
> I then created a project and new init code for a PIC32 instead of the
> PIC18 and with actually very little effort had the 8 bit code running on
> the 32 bit processor including the micro-stepping 3A 50V stepper motor
> driver.  The plan, when I get to it and stop breaking touch probes on my
> mill, is a small add on board that plugs into the 40 pin PIC18 socket.  The
> board will also have an extra 8 pin connector for a differential quadrature
> encoder and a bit of extra I/O for 0-10V output for spindle VFD.  But the
> basic ELS behaviour won't change that much.
>
> But with a 32 bit processor the potential of creating a better trajectory
> planner so that an operator can hand turn the lathe spindle back and forth
> and have the Z axis track might be something I will attempt.  With that
> experience behind me I'd love to see someone do it quickly on a different
> 32 bit processor.
>
> At the moment I'm also playing with a dspic33ch128mp508_pim mounted on an
> Explorer 16 motherboard.It's a dual core 16 bit processor and I've
> taken the basic demo application and modified it to read a quadrature
> encoder.  When I select the S3 button it shows encoder displacement in
> degrees to the nearest 100th and velocity in steps every 50mS.
>
> dsPIC33CH128MP508 Demo PIM Version 0.02a
> S3:Main only
> S6:Main+Second
> >q
> Counter  = 0
> Control  = 0x8000
> IOControl= 0x0004
> Status   = 0x0002
> Position Counter = 0
> Velocity Counter = 0
> Position Hold= 0
> >?
>   q  : Show QEI Register values
>   rx(=x) : Report or Set memory location using hex address=data
>   v  : Print Version and Build info
> >v
> dsPIC33CH128MP508 Demo PIM Version 0.02a
>
> I also have a TI Launchpad with dual core and QEI support.  It's also 16
> bit but has some pretty impressive math capabilities for doing real time
> trajectory planning.
>
> But each of these projects all suffer from the same issue (as would an
> ESP32 module).  One still has to build a board, assemble it, test it and
> mount it into a box.  The Beagle with a cape and Pi4 with a MESA are just
> so much easier.
>
> Even just the adaptor board for my ELS and the software was a few months
> of hobby time spent.  Doing a full trajectory planner is a huge undertaking.
>
> John
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: August 5, 2023 5:51 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Beaglebone black latency
> >
> > I agree..It is so easy isn't it?   Just use a  ESP32!
> >
> > I tried to write a machine controller when I was in my 20's...  This was
> > before I found turbocnc (which sucked) and linuxcnc. (emc1)
> >
> > I also helped test the trajectory planner improvements made when Rob
> > added
> > n-segment read-ahead.   It took months to make something viable that also
> > worked as an actual cnc (tool offsets, velocity/acc constraints, cnc
> > stuff...)
> >
> > Someone that comes in and says - you can easily use x and y to make a
> great
> > cnc controller are quite naive...  The grbl controller that 

Re: [Emc-users] Beaglebone black latency

[Sam Sokolik]

I agree..It is so easy isn't it?   Just use a  ESP32!

I tried to write a machine controller when I was in my 20's...  This was
before I found turbocnc (which sucked) and linuxcnc. (emc1)

I also helped test the trajectory planner improvements made when Rob added
n-segment read-ahead.   It took months to make something viable that also
worked as an actual cnc (tool offsets, velocity/acc constraints, cnc
stuff...)

Someone that comes in and says - you can easily use x and y to make a great
cnc controller are quite naive...  The grbl controller that every one touts
as a great solution is so basic it is scary..  works great for a basic 3
axis mill - but that is it.

I have actually been using a rpi4 and mesa to run an actual mill to machine
actual stuff.  It works very well - no issues...

It does some amazing stuff like...  (and is an actual cnc controller that
takes actual gcode..)  Am I getting my point across?

https://www.youtube.com/shorts/23bEsKMNJH0

sam



On Sat, Aug 5, 2023 at 7:30 PM John Dammeyer  wrote:

> Chris,
> I must admit I had a bit of a chuckle when I read your answer.  It's so
> easy to just do this or use that or add these and then you are good to go.
>
> If it's that easy I expect you'll have that tablet with the wifi
> connection to the ESP32 and be executing G-Code by the end of August right?
>
> Other than wiring up motors and all the mechanicals, which has to be done
> for any CNC installation the time to get the CNC running was even less time
> than from now until the end of August for me.  And I likely would have been
> using this were it not for the inverted ESTOP.
> https://youtu.be/9GF709ZfLRQ
> Instead I went the PC route and did a dual boot between LinuxCNC and
> WIN-XP for MACH3.  After that I bought the MESA 7i92H after also mucking
> around with my USB SmoothStepper (MACH3) from my CNC router.I decided
> Linux had a better future than WIN-XP so although I still run MACH3 on the
> CNC router the mill has LinuxCNC.
>
> On the workbench I muck around with a Pi4 and MESA 7i92H.   Go onto you
> tube and search Raspberry Pi and LinuxCNC and there are lots.
> Again one like this is much faster to set up than your suggestion and not
> any more expensive.
> https://youtu.be/qL530kJUmII
>
> I do look forward to your progress on that novel idea of a tablet, ESP32,
> RTOS and all the code to deal with trajectory planning.
> Keep us informed.   Maybe some videos of the intermediate steps.
> Especially since as you imply it's so easy to go that route.
>
> It would be interesting if you could do it for less than
> https://youtu.be/X-DY6iL6NcI
>
> John
>
>
> > -Original Message-
> > From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> > Sent: August 5, 2023 4:02 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Beaglebone black latency
> >
> > Why start with a BBB/Pi4 and then add a screen and so on.
> >
> > A better starting place would be a low-cost Android tablet.  Perhaps
> like this
> > one.  For $120 you get the CPU (that runs Linux), a touch screen and
> WiFi.
> > What is needed is a way to connect it to a machine tool.
> > https://www.bestbuy.com/site/samsung-galaxy-tab-a7-lite-8-7-32gb-with-
> > wi-fi-dark-gray/6464584.p?skuId=6464584?
> > Samsung Galaxy Tab A7 Lite 8.7" 32GB with Wi-Fi Dark Gray SM-
> > T220NZAAXAR
> > bestbuy.com
> >
> >  I would use something like a small 32-bit micro controller to do the
> real-time
> > pulses and switch monitoring.   If you would choose an ESP32 then the
> > interface to the tablet is wireless.   But you could use USB as both
> devices
> > have USB built-in.  USB has a built-in asocronus mode where data moves in
> > strict real-time.  But this might not be needed if 100% of the RT loops
> are
> > onthe microcontroller.
> >
> > The ESP32 is a dual-CPU, 32-bit device with more then enough computer
> > power to run a CNC controller.  I would 100%, for sure run an RTOS
> > (FreeRTOS or Mbed) on the ESP32.  The tablet is just the user interface
> and
> > �MPG�.
> >
> > I am currently using ESP32 to generate PWM control for a 12-axis robot
> and
> > I�m getting sub microsecond pulse accuracy which is more then my
> > application needs.  It is very fast and written 100% in Python.
> >
> > If the user already had an Android tablet or wanted to buy a used tablet
> you
> > really could under cut the cost of a $500 Chinese device.
> >
> > LCNC was written to take advantage of �cheap� community hardware.  This
> > is when a basic 16-bit PC would sell for �only� about $3,500.   Today�s
> > commodity hardware is called a �cell phone� and they are MUCH more
> > powerful then the old PC was.
> >
> >
> >
> >
> >
> > > On Aug 5, 2023, at 3:23 PM, John Dammeyer 
> > wrote:
> > >
> > > Me too.  A closer look at the fine print and selecting the correct
> button
> > shows the actual CNC controller is $513 or $541 for 3 or 4 axis
> respectively.
> > The MPG is priced separately at $96.
> > >
> > > And this is why a 

Re: [Emc-users] Installing From Debian?

[Sam Sokolik]

Yes - understood.  I knew it was an old image - but not how old.

I have been pretty busy with life. - is it going to be updated at some
point?

it did work for me - and I am not doing trivial stuff...

https://www.youtube.com/watch?v=nWCdqE5xd-c

sam


On Wed, Aug 2, 2023 at 9:39 AM andy pugh  wrote:

> On Sun, 30 Jul 2023 at 19:59, Sam Sokolik  wrote:
>
> > apt-get installed linuxcnc-uspace and was up and running within a few
> > minutes after copying my configs..
>
> It's probably worth mentioning that you get a fairly old snapshot of
> LinuxCNC this way, dating from February.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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Re: [Emc-users] Installing From Debian?

[Sam Sokolik]

I downloaded the debian iso (the big 64bit version)  - picked cinnamon as
the desktop environment..

apt-get installed linuxcnc-uspace and was up and running within a few
minutes after copying my configs..

I see the future and it is looking awesome..

great work guys!

sam

On Tue, Jul 11, 2023 at 8:50 AM Todd Zuercher  wrote:

> Here is a link to the instructions of how to correct a borked Debian 12
> installation from one of the live amd64 ISOs.
> https://forums.debian.net/viewtopic.php?t=155245
>
> You need to perform 3 command line commands (with root or sudo privileges.)
> # rm
> /etc/{initramfs/post-update.d/,kernel/{postinst.d/,postrm.d/}}z50-raspi-firmware
> # apt purge raspi-firmware
> # rm -rf /boot/firmware
>
> I tested this and it does seem to get things working correctly again.  And
> then I could install the real-time or other kernels without issue.
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
> -Original Message-
> From: Todd Zuercher 
> Sent: Monday, July 10, 2023 4:21 PM
> To: Enhanced Machine Controller (EMC) 
> Subject: Re: [Emc-users] Installing From Debian?
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> Karl,
>
> Have you tried installing Debian using one of the Bookworm live ISOs?  I
> have, and the Mate version I downloaded on 3/30/2023 is definitely borked.
> I don't remember and didn't take notes of the actual details of the
> problems.  (and I've since wiped that install.)  It would run live fine,
> install and run fine, install new software from the repos fine, but could
> not install a new kernel via apt-get or Synaptic (same thing really).  I
> didn't' bother putting much effort into finding or fixing the problem.
>
> I have it installing again on a spare old harddrive to check out exactly
> what the problems were.
>
> The system I installed on was an older Lenovo desktop with an i5 (not sure
> the exact model.)  I don't have a rbpi or any other arm devices.
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
> -Original Message-
> From: Karl Schmidt 
> Sent: Monday, July 10, 2023 2:39 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Installing From Debian?
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> @Todd -
>
> Not likely a Debian problem - I would have to see his
> /etc/apt/sources.list to know what is going on.
>
> To upgrade you also need something like this in /etc/apt.conf.d/local
>
> APT::Default-Release "/^bookworm(|-security|-updates)$/";
>
> He says this is on an old MacBook (A1278) - that is supposed to be a
> core-i5 - thus amd64.
>
> I don't think the 'Raspberry Pi Desktop' is part of Debian - so his
> sources.list is probably wacked.
>
> Other things to look at:
> # cat /etc/issue
> # uname -a
>
>
>  From a normal Debian system with these lines in sources.list:
> deb http://ftp.us.debian.org/debian/ bookworm  main contrib non-free deb
> http://deb.debian.org/debian/ bookworm main contrib non-free
> non-free-firmware deb http://security.debian.org/debian-security
> bookworm-security main contrib non-free non-free-firmware deb
> http://deb.debian.org/debian/ bookworm-updates main contrib non-free
> non-free-firmware
>
> # wajig listall linuxcnc
> linuxcnc-doc-de   motion controller for CNC machines and robots
> (German documentation)
> linuxcnc-doc-en   motion controller for CNC machines and robots
> (English documentation)
> linuxcnc-doc-es   controlador de movimiento para máquinas CNC y
> robots (Español).
> linuxcnc-doc-fr   motion controller for CNC machines and robots
> (French documentation)
> linuxcnc-doc-zh-cnmotion controller for CNC machines and robots
> (Chinese
> linuxcnc-uspace   motion controller for CNC machines and robots
> linuxcnc-uspace-dev   PC based motion controller for real-time Linux
>
> The only drawback to running a pure Debian system is it 'tends to be VERY
> conservative' - so the big advantage of running pure Debian is it 'tends to
> be VERY conservative' - something I want for running machine-control or
> public facing systems.
>
> I really want to praise the guys that did all the heavy lifting to get
> linuxcnc into Debian - not a small task - (the software has to survive all
> sorts of probes by the "Lintian" a comprehensive package checker - Debian
> Policy violations and violations of various sub-policies, best practices,
> common mistakes, and problems that maintainers like to catch before
> uploads. )
>
> I'm sure the code will be picked up by the manny distributions that feed
> off of Debian. The more eyes on the code - the more users - the more
> polished it becomes.
>
>
>
>
> --
>
> 
> Karl Schmidt  EMail k...@lrak.net
> 3209 West 9th Street  Ph (785) 841-3089
> 

Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[Sam Sokolik]

>
> The problem seems to be that our trajectory planner lack the ability to
> look ahead for any rotary axis. This means that a coordinated move that
> includes a rotary move will be dysfunctional at best.


I read that as - poor look ahead - not 'doesn't work'

On Tue, Jul 4, 2023 at 5:21 PM Sam Sokolik  wrote:

> Lol - then I guess I read too far into it..  I have run 4th axis rotary
> motion just fine..
>
> On Tue, Jul 4, 2023 at 5:15 PM andy pugh  wrote:
>
>> On Tue, 4 Jul 2023 at 22:50, Sam Sokolik  wrote:
>> >
>> > He is not saying it doesn't work...
>>
>> Actually, he did say that.
>>
>> --
>> atp
>> "A motorcycle is a bicycle with a pandemonium attachment and is
>> designed for the especial use of mechanical geniuses, daredevils and
>> lunatics."
>> — George Fitch, Atlanta Constitution Newspaper, 1912
>>
>>
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

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Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[Sam Sokolik]

Lol - then I guess I read too far into it..  I have run 4th axis rotary
motion just fine..

On Tue, Jul 4, 2023 at 5:15 PM andy pugh  wrote:

> On Tue, 4 Jul 2023 at 22:50, Sam Sokolik  wrote:
> >
> > He is not saying it doesn't work...
>
> Actually, he did say that.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
> ___
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> https://lists.sourceforge.net/lists/listinfo/emc-users
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Re: [Emc-users] [Emc-developers] Trajectory planner shortcomings

[Sam Sokolik]

He is not saying it doesn't work...  He is saying the performance isn't
there..

On Tue, Jul 4, 2023, 4:14 PM gene heskett  wrote:

> On 7/4/23 16:42, andrew beck wrote:
> > I would also help pay someone in a heart beat to fix the trajectory
> planner.
> >
> > Some sort of jerk control would be awesome.
> >
> > It doesn't need to be active in any special cases like spindle
> > synchronization but just if it worked for 4 axis simple motor at least
> > would be a game changer
> >
> I have no connection to tormach, but I've been doing synchronized y+b
> motions involving about 30 turns of the B axis, absolutely synched to
> the y axis motion at 12mm per turn, rotating B another 180 degrees and
> caring my way back to the start 180 degrees different synch point to
> make a 12mm pitch, 2 start 6mm buttress thread, successfully for about a
> year. Cutting a that thread in a 22" hard maple 2x2.  Where is the
> problem I'm supposed to be having?
>
> I'd post a pix to show it works, but JK has me blocked from posting any
> attachments. I have not resurrected my web page, it was in the /opt
> directory of a bullseye install when something changed my pw during an
> apt upgrade. Locked out, no root pw was ever made, I had no choice but
> to excavate the bookworm net-install dvd and re-install.
>
> > On Wed, 5 Jul 2023, 06:22 Martin Dobbins,  wrote:
> >
> >> "If we could get hold of the patches that introduced it to Tormach then
> >> we could look at integrating it"
> >>
> >> Maybe a Tormach user could help with that?
> >>
> >> Martin
> >> 
> >> From: andy pugh
> >> Sent: Tuesday, July 4, 2023 1:13 PM
> >> To: EMC developers 
> >> Cc: Enhanced Machine Controller (EMC) 
> >> Subject: Re: [Emc-users] [Emc-developers] Trajectory planner
> shortcomings
> >>
> >> On Tue, 4 Jul 2023 at 18:34, Marius  wrote:
> >>
> >>> The problem seems to be that our trajectory planner lack the ability to
> >>> look ahead for any rotary axis. This means that a coordinated move that
> >>> includes a rotary move will be dysfunctional at best.
> >>
> >> It's not as bad as that.
> >>
> >> There is a 9-axis blending planner in Tormach, but it's not trivial to
> >> merge it with Linuxcnc due to divergence in the codebase.
> >>
> >> If we could get hold of the patches that introduced it to Tormach then
> >> we could look at integrating it, but doing it just from comparing the
> >> code sounds hard.
> >>
> >> --
> >> atp
> >> "A motorcycle is a bicycle with a pandemonium attachment and is
> >> designed for the especial use of mechanical geniuses, daredevils and
> >> lunatics."
> >> — George Fitch, Atlanta Constitution Newspaper, 1912
> >>
> >>
> >> ___
> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >>
> >>
> https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-users=05%7C01%7C%7C91d37b0d77f54d3ecc2a08db7cbacebf%7C84df9e7fe9f640afb435%7C1%7C0%7C638240914003879354%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C=l6H2WYtGdwodmVqn5LJ63ADJShamxBDFw7IjMuaTrJg%3D=0
> >> 
> >>
> >> ___
> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett.
> --
> "There are four boxes to be used in defense of liberty:
>   soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
>   - Louis D. Brandeis
> Genes Web page 
>
>
>
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Re: [Emc-users] G33.1 error then g-code file parsed

[Sam Sokolik]

Could you try it without I3.000?

On Wed, Jun 14, 2023 at 2:31 PM John Dammeyer 
wrote:

> Does your spindle have an encoder and the spindle at speed?
>
>
> https://forum.linuxcnc.org/38-general-linuxcnc-questions/43124-g33-1-rigid-tapping
>
>
> -Original Message-
> From: Nicklas SB Karlsson [mailto:n...@nksb.eu]
> Sent: June 14, 2023 12:14 PM
> To: emc-users@lists.sourceforge.net
> Subject: [Emc-users] G33.1 error then g-code file parsed
>
> I put the lines below into a file:
>
>  � M3 S100
>  � G33.1 Z-30.474 K0.8 I3.000
>  � M5
>  � M2
>
> Then I read into Linuxcnc I get error message:
>
>  � parse_file interp_error
>
> Removing the line with G33.1 then no error message so it is something
> with this row. Program do however execute as expected with G33.1 line
> even though there is an error message so no real problem. Also execute
> without an error message if run manually in MDI mode. Use origin/master
> last commit Mon May 8 16:10:03 2023 +0200
> 404aa407f136ce91a3e6bf911c7bda54011a74e9 Anybody else had similar problem?
>
>
> Nicklas Karlsson
>
>
>
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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Re: [Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

the corners are what the boring produced.

sam

On Thu, Apr 20, 2023 at 12:18 PM John Dammeyer 
wrote:

> Nice square edges on the flat.
> https://photos.app.goo.gl/isaJ3CqR1kLjqoPK6
>
> Or did you use the shaper approach and cut the corners that way?
> John
>
> > -Original Message-----
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: April-20-23 9:28 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] An actual application for non-circular boring..
> >
> > I did it on the mill..
> >
> > (this was testing)
> > https://www.youtube.com/shorts/23bEsKMNJH0
> >
> > On Thu, Apr 20, 2023 at 11:08?AM John Dammeyer 
> > wrote:
> >
> > > So it was bored on the lathe using your spindle tracked motion?
> > >
> > > > -Original Message-
> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > Sent: April-20-23 5:03 AM
> > > > To: Enhanced Machine Controller (EMC)
> > > > Subject: Re: [Emc-users] An actual application for non-circular
> boring..
> > > >
> > > > Sure - Maybe if it was made out of steel - the area is so tight that
> > > there
> > > > isn't much room around the ball nut.
> > > >
> > > > The green machine that I am using to cut this has just what you say.
> > > > (obviously a lot more room)
> > > >
> > > > https://electronicsam.com/images/greenmachine/20180903_154610.jpg
> > > >
> > > > But what fun would that be?  ;)
> > > >
> > > > This is a nice press fit.  it turned out better than I thought it
> would.
> > > > Now I just can't screw up the rest of the machining...  :)
> > > >
> > > > sam
> > > >
> > > > On Thu, Apr 20, 2023 at 2:58?AM andy pugh 
> wrote:
> > > >
> > > > > On Thu, 20 Apr 2023 at 02:21, Sam Sokolik 
> wrote:
> > > > >
> > > > > >
> > > > > > https://photos.app.goo.gl/uqdkdMuDpp8oACy3A
> > > > >
> > > > >
> > > > > That's really nice, though I think it might have worked just as
> well
> > > with
> > > > > the bottom open and a circular bore?
> > > > >
> > > > > --
> > > > > atp
> > > > > "A motorcycle is a bicycle with a pandemonium attachment and is
> > > designed
> > > > > for the especial use of mechanical geniuses, daredevils and
> lunatics."
> > > > > ? George Fitch, Atlanta Constitution Newspaper, 1912
> > > > >
> > > > > ___
> > > > > Emc-users mailing list
> > > > > Emc-users@lists.sourceforge.net
> > > > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > > > >
> > > >
> > > > ___
> > > > Emc-users mailing list
> > > > Emc-users@lists.sourceforge.net
> > > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> > >
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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Re: [Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

I did it on the mill..

(this was testing)
https://www.youtube.com/shorts/23bEsKMNJH0

On Thu, Apr 20, 2023 at 11:08 AM John Dammeyer 
wrote:

> So it was bored on the lathe using your spindle tracked motion?
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: April-20-23 5:03 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] An actual application for non-circular boring..
> >
> > Sure - Maybe if it was made out of steel - the area is so tight that
> there
> > isn't much room around the ball nut.
> >
> > The green machine that I am using to cut this has just what you say.
> > (obviously a lot more room)
> >
> > https://electronicsam.com/images/greenmachine/20180903_154610.jpg
> >
> > But what fun would that be?  ;)
> >
> > This is a nice press fit.  it turned out better than I thought it would.
> > Now I just can't screw up the rest of the machining...  :)
> >
> > sam
> >
> > On Thu, Apr 20, 2023 at 2:58?AM andy pugh  wrote:
> >
> > > On Thu, 20 Apr 2023 at 02:21, Sam Sokolik  wrote:
> > >
> > > >
> > > > https://photos.app.goo.gl/uqdkdMuDpp8oACy3A
> > >
> > >
> > > That's really nice, though I think it might have worked just as well
> with
> > > the bottom open and a circular bore?
> > >
> > > --
> > > atp
> > > "A motorcycle is a bicycle with a pandemonium attachment and is
> designed
> > > for the especial use of mechanical geniuses, daredevils and lunatics."
> > > � George Fitch, Atlanta Constitution Newspaper, 1912
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
> ___
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Re: [Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

Sure - Maybe if it was made out of steel - the area is so tight that there
isn't much room around the ball nut.

The green machine that I am using to cut this has just what you say.
(obviously a lot more room)

https://electronicsam.com/images/greenmachine/20180903_154610.jpg

But what fun would that be?  ;)

This is a nice press fit.  it turned out better than I thought it would.
Now I just can't screw up the rest of the machining...  :)

sam

On Thu, Apr 20, 2023 at 2:58 AM andy pugh  wrote:

> On Thu, 20 Apr 2023 at 02:21, Sam Sokolik  wrote:
>
> >
> > https://photos.app.goo.gl/uqdkdMuDpp8oACy3A
>
>
> That's really nice, though I think it might have worked just as well with
> the bottom open and a circular bore?
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
> ___
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Re: [Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

I need a servo driven fast machine to do this

https://photos.app.goo.gl/isaJ3CqR1kLjqoPK6

https://photos.app.goo.gl/uqdkdMuDpp8oACy3A

On Sun, Mar 19, 2023 at 7:30 PM Sam Sokolik  wrote:

> BTW  - this is still being run by a rpi 4... (and mesa)
>
> On Sun, Mar 12, 2023 at 6:41 PM Sam Sokolik  wrote:
>
>> The poorly named 'polygon.comp' generates polygons and D shapes by giving
>> it a few parameters.The comp takes into account the tool diameter so it
>> creates the correct shape.
>>
>> I also added the functionality to 'scan' in a shape to the comp.  It is
>> probably the easiest to explain in a video..
>>
>> https://www.youtube.com/watch?v=-4sKHBh6rDk
>>
>>
>> Currently I use motion i/o to send the parameters from g-code.  But there
>> is always a plan for a re-map.
>>
>> sam
>>
>> On Sun, Mar 12, 2023 at 12:36 PM John Dammeyer 
>> wrote:
>>
>>> Love it.  Nicely done.
>>>
>>> How did you do the cad part.  Ie. to know what diameter curve to create
>>> on the drawing so the tool created the straight edge.
>>>
>>> What G-Code was used so the boring tool stayed synchronized.
>>>
>>> Curious minds wish to know...
>>> John
>>>
>>> > -Original Message-
>>> > From: Sam Sokolik [mailto:samco...@gmail.com]
>>> > Sent: March-12-23 8:13 AM
>>> > To: Enhanced Machine Controller (EMC)
>>> > Subject: [Emc-users] An actual application for non-circular boring..
>>> >
>>> > When all you have is a hammer
>>> >
>>> > https://www.youtube.com/watch?v=qMLz4kWoAEI
>>> >
>>> > sam
>>> >
>>> > ___
>>> > Emc-users mailing list
>>> > Emc-users@lists.sourceforge.net
>>> > https://lists.sourceforge.net/lists/listinfo/emc-users
>>>
>>>
>>>
>>> ___
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>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>
>>

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Re: [Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

BTW  - this is still being run by a rpi 4... (and mesa)

On Sun, Mar 12, 2023 at 6:41 PM Sam Sokolik  wrote:

> The poorly named 'polygon.comp' generates polygons and D shapes by giving
> it a few parameters.The comp takes into account the tool diameter so it
> creates the correct shape.
>
> I also added the functionality to 'scan' in a shape to the comp.  It is
> probably the easiest to explain in a video..
>
> https://www.youtube.com/watch?v=-4sKHBh6rDk
>
>
> Currently I use motion i/o to send the parameters from g-code.  But there
> is always a plan for a re-map.
>
> sam
>
> On Sun, Mar 12, 2023 at 12:36 PM John Dammeyer 
> wrote:
>
>> Love it.  Nicely done.
>>
>> How did you do the cad part.  Ie. to know what diameter curve to create
>> on the drawing so the tool created the straight edge.
>>
>> What G-Code was used so the boring tool stayed synchronized.
>>
>> Curious minds wish to know...
>> John
>>
>> > -Original Message-
>> > From: Sam Sokolik [mailto:samco...@gmail.com]
>> > Sent: March-12-23 8:13 AM
>> > To: Enhanced Machine Controller (EMC)
>> > Subject: [Emc-users] An actual application for non-circular boring..
>> >
>> > When all you have is a hammer
>> >
>> > https://www.youtube.com/watch?v=qMLz4kWoAEI
>> >
>> > sam
>> >
>> > ___
>> > Emc-users mailing list
>> > Emc-users@lists.sourceforge.net
>> > https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>>
>>
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>> https://lists.sourceforge.net/lists/listinfo/emc-users
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Re: [Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

The poorly named 'polygon.comp' generates polygons and D shapes by giving
it a few parameters.The comp takes into account the tool diameter so it
creates the correct shape.

I also added the functionality to 'scan' in a shape to the comp.  It is
probably the easiest to explain in a video..

https://www.youtube.com/watch?v=-4sKHBh6rDk


Currently I use motion i/o to send the parameters from g-code.  But there
is always a plan for a re-map.

sam

On Sun, Mar 12, 2023 at 12:36 PM John Dammeyer 
wrote:

> Love it.  Nicely done.
>
> How did you do the cad part.  Ie. to know what diameter curve to create on
> the drawing so the tool created the straight edge.
>
> What G-Code was used so the boring tool stayed synchronized.
>
> Curious minds wish to know...
> John
>
> > -----Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-12-23 8:13 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: [Emc-users] An actual application for non-circular boring..
> >
> > When all you have is a hammer
> >
> > https://www.youtube.com/watch?v=qMLz4kWoAEI
> >
> > sam
> >
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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Re: [Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

No!!   it is mainly so it is as strong as I can make it in such a small
spot..

sam

On Sun, Mar 12, 2023 at 11:51 AM andy pugh  wrote:

> On Sun, 12 Mar 2023 at 15:17, Sam Sokolik  wrote:
>
> > When all you have is a hammer
> >
>
> Cool, though the part would almost certainly work just fine with an open
> bottom...
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
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Re: [Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

It is a 800? Watt brushless servo belt driven.  It is being run by a stmbl
drive.  It isn't running position mode - the encoder that linuxcnc used for
spindle synced motion is mounted on the spindle.

On Sun, Mar 12, 2023, 11:14 AM Rob C  wrote:

> Nice!
>
> what is your spindle?
>
> servo motor with encoder?
>
> On Sun, 12 Mar 2023 at 15:17, Sam Sokolik  wrote:
>
> > When all you have is a hammer
> >
> > https://www.youtube.com/watch?v=qMLz4kWoAEI
> >
> > sam
> >
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
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[Emc-users] An actual application for non-circular boring..

[Sam Sokolik]

When all you have is a hammer

https://www.youtube.com/watch?v=qMLz4kWoAEI

sam

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Re: [Emc-users] Linux CNC on Pi3

[Sam Sokolik]

One thing to remember is that is a very basic acorn setup.  (With their cut
down control software). Plus you need a decent performing computer to run
the software..  so that needs to be considered..

Acorn is a good solution especially if you are familiar with the control
software.

On Mon, Feb 27, 2023, 1:07 PM John Dammeyer  wrote:

> Two problems.
> One: $249US and two: out of stock at the moment.
>
> Mind you, so is the 7i92H but it was around $89 and with two Chinese BoBs
> at $5 each comes in much cheaper.
>
> So then the question is both require waiting.  A Pi4 isn't cheap either
> nor in stock.
>
> And an ACORN CNC kit is $329.  Looks like in stock.
> https://www.centroidcnc.com/centroid_diy/acorn_cnc_controller.html
>
> It's hard to convince someone to go the CNC route with LinuxCNC when all
> they want is simple 3 or 4 axis with none of the other amazing features
> that LinuxCNC offers.
>
> John
>
> > -Original Message-
> > From: andy pugh [mailto:bodge...@gmail.com]
> > Sent: February-27-23 10:32 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Linux CNC on Pi3
> >
> > On Mon, 27 Feb 2023 at 18:15, John Dammeyer 
> wrote:
> > >
> > > Ah.  I forgot about that little tidbit.
> >
> > SPI (Such as 7C80) ought to work though.
> >
> > --
> > atp
> > "A motorcycle is a bicycle with a pandemonium attachment and is
> > designed for the especial use of mechanical geniuses, daredevils and
> > lunatics."
> > � George Fitch, Atlanta Constitution Newspaper, 1912
> >
> >
> > ___
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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Re: [Emc-users] Running PathPilot on non-Tormach Machines

[Sam Sokolik]

I would certainly go back into testing mode if Rob merged the TP changes..
:)  That is stuff you can setup and let run..

sam

On Tue, Jan 31, 2023 at 7:05 AM andy pugh  wrote:

> On Mon, 30 Jan 2023 at 11:16, Rick Moscoloni  wrote:
> >
> > Hi Andy, could this be merged to master? or are proprietary?
>
> It has been offered to us, but it doesn't merge cleanly as it predates
> the Joints-Axes changes.
>
> Rob Ellenberg said, (April 2021)
> There has been some divergence in the TP but not an impossible amount.
> The main challenge there is getting the associated emccanon changes
> merged, because max velocity / acceleration is calculated differently,
> and all those changes are mixed in with things like the coordinate
> transform overhaul (so we have to either tease that out again or port
> a big chunk of interp changes too). Do you know of anyone in the
> community who would be willing to do testing? I've added some unit
> tests for the TP / blending improvements, so it won't take as much
> functional testing to prove out the basics.
>
>
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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Re: [Emc-users] Servo motor in step mode reaches position after LCNC

[Sam Sokolik]

This is why I don't like smart servo drives..   lol..  You don't know how
well the drive is following the path linuxcnc is commanding..

With steppers - at least they stall..  The fact that the servo drive isn't
tripping a following error makes me think they are not setup correctly.
It should notice the difference between the step train and the actual
position of the servo and know that it isn't keeping up.

On Tue, Jan 24, 2023 at 9:43 AM Leonardo Marsaglia 
wrote:

> Hi guys, hope you are all doing well.
>
> My brother is changing some stepper motors to servos from a machine with
> LCNC 2.4.3 and a mesa 5i20. The servos are D2 model from Hiwin.
>
> The problem he's having is that, in rapid movements, after LCNC completes
> its motion the servo motor keeps running until it reaches the desired
> position. Apparently scale is ok and position is reached ok too, but only
> works well in coordinate motion (G01) between two axes.
>
> Could it be that the stepgen timing is too fast for what the servo is
> waiting for? And because of that it buffers all the pulses and executes the
> motion anyway? The manual says max frequency in LOW FREQ input is about 500
> khz so this shouldn't be a problem but maybe the timing is not quite right
> for what the servo expects.
>
> By the way, I can't find any info in the manuals about the timing of the
> step signal other than the max frequency and wiring diagrams for the
> different setups.
>
> I don't have direct access to this machine so there's not much that I can
> do right now but it might be a simple problem so I had to ask.
>
> Thanks as always for your help!
>
> Leonardo
>
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Re: [Emc-users] mesa card install issue

[Sam Sokolik]

Different power supplies?   Marginal power supplies can cause issues too.

On Thu, Jan 12, 2023, 7:14 PM lloyd wilson 
wrote:

> tried that, multiple slots, 2 different machines, same behavior. looks
> like an order is in order.
>
> On 1/12/23 3:51 PM, Peter C. Wallace wrote:
> > On Thu, 12 Jan 2023, lloyd wilson wrote:
> >
> >> Date: Thu, 12 Jan 2023 15:34:15 -0500
> >> From: lloyd wilson 
> >> Reply-To: "Enhanced Machine Controller (EMC)"
> >> 
> >> To: Emc mail list 
> >> Subject: [Emc-users] mesa card install issue
> >>
> >> I'm setting up a VMC machine, using a re-purposed Mesa 5i20 card
> >> (card is about a decade old). When attempting to configure the card,
> >> I get the following:
> >>
> >> bport@bport:~$ halrun -I
> >> halcmd: loadrt hostmot2
> >> Note: Using POSIX realtime
> >> hm2: loading Mesa HostMot2 driver version 0.15
> >> halcmd: loadrt hm2_pci config="firmware=hm2/5i20/SVST8_4.BIT
> >> num_encoders=4 num_pwmgens=5"
> >> hm2_pci: loading Mesa AnyIO HostMot2 driver version 0.7
> >> hm2_pci: discovered 5i20 at :04:00.0
> >> hm2/hm2_5i20.0: Low Level init 0.15
> >> hm2/hm2_5i20.0: invalid cookie, got 0x, expected 0x55AACAFE
> >> hm2/hm2_5i20.0: FPGA failed to initialize, or unexpected firmware?
> >> hm2_5i20.0: board fails HM2 registration
> >> RTAPI_PCI: Unmapped 65536 bytes at 0x7f0c4396c000
> >> Driver probe function failed!
> >> hm2_pci: error registering PCI driver
> >> hm2_pci: rtapi_app_main: Operation not permitted (-1)
> >> :2: waitpid failed /usr/bin/rtapi_app hm2_pci
> >> :2: /usr/bin/rtapi_app exited without becoming ready
> >> :2: insmod for hm2_pci failed, returned -1
> >> halcmd:
> >>
> >> (the same error occurs when attempting to load the supplied sample
> >> configuration for a 5i20 system)
> >>
> >> Any ideas what's happening? More importantly, is it fixable?
> >>
> >> thanks
> >>
> >> -ldw
> >>
> >
> >
> >
> > First thing I would try is cleaning both the 5I20 edge connector and
> > Motherboard PCI slot with 99% Isopropyl alcohol.
> >
> >>
> >>
> >> ___
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> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >
> > Peter Wallace
> > Mesa Electronics
> >
> > (\__/)
> > (='.'=) This is Bunny. Copy and paste bunny into your
> > (")_(") signature to help him gain world domination.
> >
> >
> >
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>
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Re: [Emc-users] Printer ports are not dead yet! (linuxcnc closing the servo loop with $10 pci card)

[Sam Sokolik]

https://www.youtube.com/shorts/QFwzx6LwS7Y

On Thu, Sep 1, 2022 at 2:27 AM  wrote:

> Sam,
>
> Thanks for posting that link. The video gives a really good explanation
> which is much appreciated. Thanks for taking the time to do that.
>
> Regards,
>
> Marcus
>
>
> On 2022-09-01 00:39, Sam Sokolik wrote:
> > some mansplaining..
> >
> > https://www.youtube.com/watch?v=VWXCAxUzXK0
> >
> > On Tue, Aug 23, 2022 at 4:40 PM Sam Sokolik  wrote:
> >
> >> The spindle motor is a brushed dc.  I am planning on using another amc
> >> drive to drive it...
> >>
> >> On Tue, Aug 23, 2022, 4:33 PM 
> >> wrote:
> >>
> >>> On 2022-08-23 19:29, Sam Sokolik wrote:
> >>> > Little Emco lathe with some pittman servos...   Amc drive that takes
> >>> > PWM+Dir.
> >>> >
> >>>
> >>> Looks pretty smooth to me.
> >>> What Pittman servos are those?
> >>> What will you do with the spindle drive motor? Servo?
> >>>
> >>> Marcus
> >>>
> >>>
> >>> ___
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> >>> Emc-users@lists.sourceforge.net
> >>> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>>
> >>
> >
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Re: [Emc-users] HAL question

[Sam Sokolik]

This is where halcmd comes in really handy..  When linuxcnc is launched -
bring up a terminal and type

halcmd -kf
than you can do a
show pin hm2[tab] enter.  This will show you all the pins.
or if there are parameters to set things
show param hm2[tab] enter

or you can bring up 'show hal configuration' usually from the machine menu.

I use halcmd all the time to test nets and stuff..
sam.

On Sun, Dec 11, 2022 at 7:39 AM John Figie  wrote:

> "Do I just add -not to the end?
> net toolsense-in <= hm2_7i92.0.gpio.030.in-not"
>
> I think that is the way to do it. That is how it works with my 7i80
>
> http://linuxcnc.org/docs/stable/html/man/man9/hostmot2.9.html
>
>
>
> On Sat, Dec 10, 2022, 10:34 PM John Dammeyer 
> wrote:
>
> > One of the relies by Todd Zeurcher on the forum
> >
> https://forum.linuxcnc.org/27-driver-boards/33646-mesa-7i76-invert-input-pin
> > states to invert the input
> > hm2_5i25.0.7i76.0.0.input-00-not
> >
> > I'm using the 7i92 and my inputs are referred to in this way.
> > net toolsense-in <= hm2_7i92.0.gpio.030.in
> >
> > Do I just add -not to the end?
> > net toolsense-in <= hm2_7i92.0.gpio.030.in-not
> >
> >
> > Thanks
> > John
> >
> > ___
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> >
> John Figie
>
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Re: [Emc-users] Classic ladder compare blocks..

[Sam Sokolik]

also - you can't have spaces..   or it fails with no error.  But once you
know the little nuances - it is pretty cool!

On Tue, Nov 29, 2022 at 11:21 AM Sam Sokolik  wrote:

> the comma certainly tripped me up..  This isn't my first or even most
> complicated ladder - but buy - it has been a few years.  Have to re-learn
> it all over.
>
> sam
>
> On Tue, Nov 29, 2022 at 11:05 AM Todd Zuercher 
> wrote:
>
>> I think I had tried using the & symbol, and wasn't able to make it work,
>> but it is possible I was missing the key "," in the phrase (it was a long
>> time ago.)
>>
>> Todd Zuercher
>> P. Graham Dunn Inc.
>> 630 Henry Street
>> Dalton, Ohio 44618
>> Phone:  (330)828-2105ext. 2031
>>
>> -Original Message-
>> From: Sam Sokolik 
>> Sent: Tuesday, November 29, 2022 11:55 AM
>> To: Enhanced Machine Controller (EMC) 
>> Subject: Re: [Emc-users] Classic ladder compare blocks..
>>
>> [EXTERNAL EMAIL] Be sure links are safe.
>>
>> In the manual - they say you can 'and' and 'or' and such..  You need a ,
>> then the operator..  But I think maybe the limit is 2..
>>
>>
>> https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Flinuxcnc.org%2Fdocs%2Fstable%2Fhtml%2Fladder%2Fclassic-ladder.html%23_comparedata=05%7C01%7Ctoddz%40pgrahamdunn.com%7C257d76eef1444be9420808dad22d%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638053377946996653%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=NtbqLQIRX68k8nj16AoAmkS0x4hS%2BKwHr8CjM6EIhhA%3Dreserved=0
>>
>>
>>-
>>
>>(, ) separate into groups example %IF1=2,&%IF2<5 in pseudo code
>>translates to if %IF1 is equal to 2 and %IF2 is less than 5 then the
>>comparison is true. Note the comma seperating the two groups of
>>comparisions.
>>
>>
>> A broad google search didn't bring up anything..
>>
>> sam
>>
>> On Tue, Nov 29, 2022 at 9:04 AM Todd Zuercher 
>> wrote:
>>
>> > Oh I misunderstood your question. Yes I think a single variable
>> > comparison block is limited to only a single comparison of a variable
>> > to one constant or another variable.  I am surprised that it worked
>> > with the last two compares combined into a single block.  So for your
>> > row of logic below I would have thought it would require 3 comparison
>> > blocks in a row on the same line.  One each for %IW0<%W0, and %IW0>0,
>> > and %IW0<7.  Are you certain your logic worked completely, and one or
>> > both of the last two were not ignored.
>> >
>> > Todd Zuercher
>> > P. Graham Dunn Inc.
>> > 630 Henry Street
>> > Dalton, Ohio 44618
>> > Phone:  (330)828-2105ext. 2031
>> >
>> > -Original Message-
>> > From: Sam Sokolik 
>> > Sent: Monday, November 28, 2022 8:57 PM
>> > To: Enhanced Machine Controller (EMC)
>> > 
>> > Subject: [Emc-users] Classic ladder compare blocks..
>> >
>> > [EXTERNAL EMAIL] Be sure links are safe.
>> >
>> > It doesn't say anywhere in the linuxcnc manual for classic ladder -
>> > but is there a limit for the compare block to just 2 compares?
>> > ie..
>> >
>> > I had this in the compare
>> > %IW0<%W0,&%IW0>0,<7
>> > For the life of me the logic just wasn't working.
>> > Finally I put it in 2 separate compares..
>> > %IW0<%W0 in one..  followed by %IW0>0,<7
>> >
>> > This worked as expected..
>> >
>> > BTW - the old emco turret with no feedback should work pretty darn
>> > well with a little ladder logic..  Only 1 output.  (logic 0 runs the
>> turret into
>> > the pawl through a current limiting resistor..   logic 1 runs the turret
>> > clockwise to the next tool.)
>> >
>> >
>> > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.
>> > youtube.com%2Fwatch%3Fv%3DJGGPob1iKj8data=05%7C01%7Ctoddz%40pgrah
>> > amdunn.com%7C257d76eef1444be9420808dad22d%7C5758544c573f47cebee96c
>> > 3e0806fb43%7C0%7C0%7C638053377947152901%7CUnknown%7CTWFpbGZsb3d8eyJWIj
>> > oiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C
>> > %7C%7Csdata=cif23wgzE%2FVAGPkRunpoNKJIEhXWuelmjvRBaNQKeaI%3D
>> > reserved=0
>> >
>> > The original Emco compact 5 CNC, when you would call a tool - say you
>> are
>> > at tool 1 and going to tool 3 - would stop at tool 2 and index.  

Re: [Emc-users] Classic ladder compare blocks..

[Sam Sokolik]

the comma certainly tripped me up..  This isn't my first or even most
complicated ladder - but buy - it has been a few years.  Have to re-learn
it all over.

sam

On Tue, Nov 29, 2022 at 11:05 AM Todd Zuercher 
wrote:

> I think I had tried using the & symbol, and wasn't able to make it work,
> but it is possible I was missing the key "," in the phrase (it was a long
> time ago.)
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
> -Original Message-
> From: Sam Sokolik 
> Sent: Tuesday, November 29, 2022 11:55 AM
> To: Enhanced Machine Controller (EMC) 
> Subject: Re: [Emc-users] Classic ladder compare blocks..
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> In the manual - they say you can 'and' and 'or' and such..  You need a ,
> then the operator..  But I think maybe the limit is 2..
>
>
> https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Flinuxcnc.org%2Fdocs%2Fstable%2Fhtml%2Fladder%2Fclassic-ladder.html%23_comparedata=05%7C01%7Ctoddz%40pgrahamdunn.com%7C257d76eef1444be9420808dad22d%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638053377946996653%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=NtbqLQIRX68k8nj16AoAmkS0x4hS%2BKwHr8CjM6EIhhA%3Dreserved=0
>
>
>-
>
>(, ) separate into groups example %IF1=2,&%IF2<5 in pseudo code
>translates to if %IF1 is equal to 2 and %IF2 is less than 5 then the
>comparison is true. Note the comma seperating the two groups of
>comparisions.
>
>
> A broad google search didn't bring up anything..
>
> sam
>
> On Tue, Nov 29, 2022 at 9:04 AM Todd Zuercher 
> wrote:
>
> > Oh I misunderstood your question. Yes I think a single variable
> > comparison block is limited to only a single comparison of a variable
> > to one constant or another variable.  I am surprised that it worked
> > with the last two compares combined into a single block.  So for your
> > row of logic below I would have thought it would require 3 comparison
> > blocks in a row on the same line.  One each for %IW0<%W0, and %IW0>0,
> > and %IW0<7.  Are you certain your logic worked completely, and one or
> > both of the last two were not ignored.
> >
> > Todd Zuercher
> > P. Graham Dunn Inc.
> > 630 Henry Street
> > Dalton, Ohio 44618
> > Phone:  (330)828-2105ext. 2031
> >
> > -Original Message-
> > From: Sam Sokolik 
> > Sent: Monday, November 28, 2022 8:57 PM
> > To: Enhanced Machine Controller (EMC)
> > 
> > Subject: [Emc-users] Classic ladder compare blocks..
> >
> > [EXTERNAL EMAIL] Be sure links are safe.
> >
> > It doesn't say anywhere in the linuxcnc manual for classic ladder -
> > but is there a limit for the compare block to just 2 compares?
> > ie..
> >
> > I had this in the compare
> > %IW0<%W0,&%IW0>0,<7
> > For the life of me the logic just wasn't working.
> > Finally I put it in 2 separate compares..
> > %IW0<%W0 in one..  followed by %IW0>0,<7
> >
> > This worked as expected..
> >
> > BTW - the old emco turret with no feedback should work pretty darn
> > well with a little ladder logic..  Only 1 output.  (logic 0 runs the
> turret into
> > the pawl through a current limiting resistor..   logic 1 runs the turret
> > clockwise to the next tool.)
> >
> >
> > https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.
> > youtube.com%2Fwatch%3Fv%3DJGGPob1iKj8data=05%7C01%7Ctoddz%40pgrah
> > amdunn.com%7C257d76eef1444be9420808dad22d%7C5758544c573f47cebee96c
> > 3e0806fb43%7C0%7C0%7C638053377947152901%7CUnknown%7CTWFpbGZsb3d8eyJWIj
> > oiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C
> > %7C%7Csdata=cif23wgzE%2FVAGPkRunpoNKJIEhXWuelmjvRBaNQKeaI%3D
> > reserved=0
> >
> > The original Emco compact 5 CNC, when you would call a tool - say you are
> > at tool 1 and going to tool 3 - would stop at tool 2 and index.   (it
> stops
> > at every tool location between the one it was at and the one you
> > called)
> >
> > I think this was probably convenience as you need 2 different time
> > delays
> > - the initial one to go to the next one..  (slightly longer than every
> > pocket after the first..)  I am currently using 2.2 seconds for the
> > first tool -
> > 1.8 seconds for every tool after.
> >
> > kinda neat.
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists

Re: [Emc-users] Classic ladder compare blocks..

[Sam Sokolik]

In the manual - they say you can 'and' and 'or' and such..  You need a ,
then the operator..  But I think maybe the limit is 2..

http://linuxcnc.org/docs/stable/html/ladder/classic-ladder.html#_compare


   -

   (, ) separate into groups example %IF1=2,&%IF2<5 in pseudo code
   translates to if %IF1 is equal to 2 and %IF2 is less than 5 then the
   comparison is true. Note the comma seperating the two groups of
   comparisions.


A broad google search didn't bring up anything..

sam

On Tue, Nov 29, 2022 at 9:04 AM Todd Zuercher  wrote:

> Oh I misunderstood your question. Yes I think a single variable comparison
> block is limited to only a single comparison of a variable to one constant
> or another variable.  I am surprised that it worked with the last two
> compares combined into a single block.  So for your row of logic below I
> would have thought it would require 3 comparison blocks in a row on the
> same line.  One each for %IW0<%W0, and %IW0>0, and %IW0<7.  Are you certain
> your logic worked completely, and one or both of the last two were not
> ignored.
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
> -Original Message-
> From: Sam Sokolik 
> Sent: Monday, November 28, 2022 8:57 PM
> To: Enhanced Machine Controller (EMC) 
> Subject: [Emc-users] Classic ladder compare blocks..
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> It doesn't say anywhere in the linuxcnc manual for classic ladder - but is
> there a limit for the compare block to just 2 compares?
> ie..
>
> I had this in the compare
> %IW0<%W0,&%IW0>0,<7
> For the life of me the logic just wasn't working.
> Finally I put it in 2 separate compares..
> %IW0<%W0 in one..  followed by %IW0>0,<7
>
> This worked as expected..
>
> BTW - the old emco turret with no feedback should work pretty darn well
> with a little ladder logic..  Only 1 output.  (logic 0 runs the turret into
> the pawl through a current limiting resistor..   logic 1 runs the turret
> clockwise to the next tool.)
>
>
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DJGGPob1iKj8data=05%7C01%7Ctoddz%40pgrahamdunn.com%7C0fa3074c034248ba60d508dad1ad2e3a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638052838992711450%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=B9AYShdhN79RyUPXJrTdSYeNycxAnDlMyFFgo6mdgDA%3Dreserved=0
>
> The original Emco compact 5 CNC, when you would call a tool - say you are
> at tool 1 and going to tool 3 - would stop at tool 2 and index.   (it stops
> at every tool location between the one it was at and the one you called)
>
> I think this was probably convenience as you need 2 different time delays
> - the initial one to go to the next one..  (slightly longer than every
> pocket after the first..)  I am currently using 2.2 seconds for the first
> tool -
> 1.8 seconds for every tool after.
>
> kinda neat.
>
> ___
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> Emc-users@lists.sourceforge.net
>
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=05%7C01%7Ctoddz%40pgrahamdunn.com%7C0fa3074c034248ba60d508dad1ad2e3a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C638052838992711450%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=aaOUNvxcdaW9Kw%2F%2FZtos6aGo98LDtAr4jRK7pO22NDs%3Dreserved=0
>
>
> ___
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> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

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[Emc-users] Classic ladder compare blocks..

[Sam Sokolik]

It doesn't say anywhere in the linuxcnc manual for classic ladder - but is
there a limit for the compare block to just 2 compares?
ie..

I had this in the compare
%IW0<%W0,&%IW0>0,<7
For the life of me the logic just wasn't working.
Finally I put it in 2 separate compares..
%IW0<%W0 in one..  followed by %IW0>0,<7

This worked as expected..

BTW - the old emco turret with no feedback should work pretty darn well
with a little ladder logic..  Only 1 output.  (logic 0 runs the turret into
the pawl through a current limiting resistor..   logic 1 runs the turret
clockwise to the next tool.)

https://www.youtube.com/watch?v=JGGPob1iKj8

The original Emco compact 5 CNC, when you would call a tool - say you are
at tool 1 and going to tool 3 - would stop at tool 2 and index.   (it stops
at every tool location between the one it was at and the one you called)

I think this was probably convenience as you need 2 different time delays -
the initial one to go to the next one..  (slightly longer than every pocket
after the first..)  I am currently using 2.2 seconds for the first tool -
1.8 seconds for every tool after.

kinda neat.

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Re: [Emc-users] triggering the mesa card encoder index pulse

[Sam Sokolik]

I have written some simple hal components that set the index and then wait
for the index to be seen before continuing.. (like shape turning/boring)

probably not the greatest code  Seems to work though..


Code snippet  (indexenable is hooked to index enable of encoder)

// only set index enable once
if (enable && !isindex) {
isindex = true;
indexenable = true;
return;
}

// wait for spindle index before actually enabling
if (enable && isindex && indexenable){
return;
}




On Thu, Nov 3, 2022 at 9:14 AM gene heskett  wrote:

> On 11/3/22 08:30, andy pugh wrote:
> > On Thu, 3 Nov 2022 at 09:23, andrew beck 
> wrote:
> >
> >> looking for a way to set the index pulse high on the mesa card input
> before
> >> triggering a m19 for tool change as a safety check
> >>
> > The mesa index is a physical pin, so you would need to route out via a
> GPIO
> >
> > But I don't understand your analysis of the problem, or the proposed fix.
> >
> > If you just want to zero the encoder at a random point (which is what
> > toggling the index at a random point would do, if it did anything) then
> you
> > can do that via HAL.
> >
> > Is it possible that the problem is that the spindle is simply not "homed"
> > sometimes? ie it has not yet passed through index with the index-enable
> > set, so the encoder counts are not aligned to the index mark?
> >
> > In that case your tool change could run an explicit homing cycle prior to
> > toolchange.
> >
> > M64 P04  ; set index-enable
> > G4 P0.1
> > M65 P04 ; toggle the tristate back
> > M3 S100 ; spin the spindle briefly
> > G4 P1 ; wait for at least one full rev
> > M19 P0 ; carry on.
> >
> > As the index-enable is a bidirectional pin a bit of HAL is needed, using
> > the tristate-bit component.
> > That should be set up with the in-pin permanently high and the enable
> > connected to motion.digital-out-NN (NN = 04 in the example above)
> >
> An interesting thread Andy.
>
> I've considered doing something to aid in tool changing on my go704
> which has an R8 spindle.
> But the spindle locking consists of a home made clamp ring carrying a
> spring loaded pin  I clamp
> to the outside of the spindle housings bearing barrel when I want to do
> a lot of it. It engages a
> 6mm hole in the spindle nose to immobilize the spindle while cranking on
> the drawbolt.
> It also carries the camera I'd like to use for edge finding, but the fix
> that made the camera
> work a couple months back, apparently never made it into master, so the
> camview tab is once again a
> blank white screen. Insert frustrated Sigh here.
>
> Is there an unwritten rule that says it's never going to work in linuxcnc?
>
> Not mounted ATM because it can get in the way.
>
> And, using an an 8 point 10mm socket in an impact screw driver, the
> impact is good enough to get an
> R8 tight just by grabbing the spindle by hand. If I could find a pin
> driver small enough to push the
> locking pin in, and use something like the above to engage the pin, then
> cause the spindle to move
> until the pin drops in then turn it backwards to assure full penetration
> of the pin, then I'd be tempted
> make a motorized suspension to disengage the socket when the tool has
> been changed, or to drop
> the socket onto the drawbolt to be used in a semi-auto mode.
>
> Sawing the handle off the tool, and rigging a pair of  dc to dc SSR's in
> place of the tools
> trigger and direction switches, would allow me to actually change a tool
> with only 2 hands.
> Normally it needs at least 3...
>
> And by activating the spindle with a zero speed, would hold it
> stationary enough for the
> ratchet screwdriver to do the job. I do not do that now as a stopped
> spindle is free.
>
> Sawing  up the tool itself is a minor problem. Picking a tool to saw up
> presents a long term
> problem because the batteries fail and replacement batteries can't be
> found 5 years later.
> Either that, or add yet another psu big enough to sub for the battery.
>
> A 20 volt tool head should run on a 24 volt supply scavenged from a 3d
> printer, so those
> are cheap enough. So are motors, belts, and linear bearings from failed
> 3d printers, which
> I have a house full of. So driving the tools vertical transport is only
> a problem if I can't print it.
> The Z drive from a dead printer could supply all of that. And that stuff
> I have underfoot.
>
> Progress reports as it happens. ATM I'm rebuilding bigger 3d printers,
> waiting on parts.
>
> And fix my camview, again. Please...
>
> Cheers, Gene Heskett.
> --
> "There are four boxes to be used in defense of liberty:
>   soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
>   - Louis D. Brandeis
> Genes Web page 
>
>
>
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> 

Re: [Emc-users] Fusion 360

[Sam Sokolik]

I tried this about 6 months ago.. It was about 95% there..  (Lutris)  My
account, My drawing...

https://photos.app.goo.gl/5PMsUnD4KAFyEFkF6

On Fri, Oct 21, 2022 at 8:32 PM Chris Albertson 
wrote:

> I run Fusion 360 on Linux inside a virtual machine.  I use VMware and then
> Windows 10 and then Fusion 360.   This works well if you have a computer
> with enough RAM and CPU cores, and a good enough graphics card. I keep the
> VM image on an M.2 FLASH memory that is very fast
>   Inside VMware, you can specify how much RAM and how many CPU cores to
> assign to the virtual Windows computer. Fusion needs maybe 4 cores and 24
> GB RAM to function acceptably.  Linux continues to run on what is left
> over.
>
> I have also run Fusion 360 in a 2011 vintage iMac with a 4-core i5 CPU and
> 32 GB RAM.Fusion 360 has comparable performance on both computers.
>
> The largest project I did on Fusion 360 with the above is a CNC conversion
> of a Harbor Freight mini mill.  I modeled the entire mill and also all the
> add-on parts.
>
> On Fri, Oct 21, 2022 at 3:52 PM Martin Dobbins  wrote:
>
> > So, following on from the CAM discussion and all the love shown to Fusion
> > 360
> >
> > Has anyone tried:
> >
> > https://all3dp.com/2/fusion-360-for-linux-how-to-install-it/
> >
> > or something similar?
> >
> > Or do you all use Windows or Mac?
> >
> > Martin
> >
> >
> > ___
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
>
> --
>
> Chris Albertson
> Redondo Beach, California
>
> ___
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>

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Re: [Emc-users] CAM software

[Sam Sokolik]

also dxf2gcode.  (have not played with it in a long time..)

https://sourceforge.net/projects/dxf2gcode/

I have been meaning to try out freecads cam package but have not had time.

sam

On Fri, Oct 21, 2022 at 12:45 PM Sam Sokolik  wrote:

> ace converter?  (I still use it a lot..)
>
> sam
>
> On Fri, Oct 21, 2022 at 12:39 PM Chris Albertson <
> albertson.ch...@gmail.com> wrote:
>
>> Solidworks, FreeCAD, Fusion360 all are pretty much the same in terms of
>> the
>> user interface.   If doing serious work, just buy the paid version of
>> Fusion360 and sign up for real classes,  Actually do the exercises.  It is
>> normal for it to take weeks or months of daily use before you get good at
>> it.
>>
>> Fusion is pretty much seamless from design sketches to working g-code.
>>
>> It is like a piano.  It would be silly if I said "I've watched 3 youtube
>> videos and tried for 40 minutes and I still can't play the piano."  It is
>> kind of the same with state of the art CAD/CAM systems.   Give it 100
>> hours before you can be called a "competent beginner"
>>
>>
>>
>> On Fri, Oct 21, 2022 at 10:21 AM John Dammeyer 
>> wrote:
>>
>> > That FreeCAD subject has once again prompted me to ask how people are
>> > using their CAD/CAM to generate G-Code.
>> >
>> > For the first time in about 10 years (or maybe more now) I've refused to
>> > update my support for MecSoft Visual CAD/CAM because their response to
>> my
>> > question was _probably_never_.
>> >
>> > The question was: "When are you once again going to be able to import
>> the
>> > .AD_PRT files from AlibreCAD?"
>> >
>> > Way back AlibreCAM was VisualCAM from MecSoft and was integrated into
>> > Alibre.  They had some sort of falling out because Alibre is also no
>> longer
>> > interested in supporting VisualCAM stating that it's MecSoft that makes
>> the
>> > decision as to whether to integrate.   I feel like it was a painful
>> devorce…
>> >
>> > I'm stuck with using the 2020 version of AlibreCAM (with the occasional
>> > error message) on the current version of AlibreCAD.  I will tell Alibre
>> > this year that I no longer feel the need to pay support after way more
>> than
>> > 16 years of support payments (I have drawings from 2006).
>> >
>> > From what I can see FreeCAD doesn't do CAM.  I have no interest in using
>> > Fusion360.  Both Fusion360, FreeCAD and the VisualCAD user interface
>> > confuse me.  Just can't seem to learn them while I find AlibreCAD easy.
>> > But then I could never really effectively use AutoCAD either which is
>> why
>> > Alibre was so great when it showed up.
>> >
>> > What is out there for CAM G-Code generation?  Preferably integrated with
>> > with the CAD package so one can go back and forth to tweak a drawing for
>> > better CAM without having to start all over again with the CAD.
>> >
>> > Thanks
>> > John
>> >
>> >
>> >
>> >
>> > "ELS! Nothing else works as well for your Lathe"
>> > Automation Artisans Inc.
>> > www dot autoartisans dot com
>> >
>> >
>> > ___
>> > Emc-users mailing list
>> > Emc-users@lists.sourceforge.net
>> > https://lists.sourceforge.net/lists/listinfo/emc-users
>> >
>>
>>
>> --
>>
>> Chris Albertson
>> Redondo Beach, California
>>
>> ___
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>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

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Re: [Emc-users] CAM software

[Sam Sokolik]

ace converter?  (I still use it a lot..)

sam

On Fri, Oct 21, 2022 at 12:39 PM Chris Albertson 
wrote:

> Solidworks, FreeCAD, Fusion360 all are pretty much the same in terms of the
> user interface.   If doing serious work, just buy the paid version of
> Fusion360 and sign up for real classes,  Actually do the exercises.  It is
> normal for it to take weeks or months of daily use before you get good at
> it.
>
> Fusion is pretty much seamless from design sketches to working g-code.
>
> It is like a piano.  It would be silly if I said "I've watched 3 youtube
> videos and tried for 40 minutes and I still can't play the piano."  It is
> kind of the same with state of the art CAD/CAM systems.   Give it 100
> hours before you can be called a "competent beginner"
>
>
>
> On Fri, Oct 21, 2022 at 10:21 AM John Dammeyer 
> wrote:
>
> > That FreeCAD subject has once again prompted me to ask how people are
> > using their CAD/CAM to generate G-Code.
> >
> > For the first time in about 10 years (or maybe more now) I've refused to
> > update my support for MecSoft Visual CAD/CAM because their response to my
> > question was _probably_never_.
> >
> > The question was: "When are you once again going to be able to import the
> > .AD_PRT files from AlibreCAD?"
> >
> > Way back AlibreCAM was VisualCAM from MecSoft and was integrated into
> > Alibre.  They had some sort of falling out because Alibre is also no
> longer
> > interested in supporting VisualCAM stating that it's MecSoft that makes
> the
> > decision as to whether to integrate.   I feel like it was a painful
> devorce…
> >
> > I'm stuck with using the 2020 version of AlibreCAM (with the occasional
> > error message) on the current version of AlibreCAD.  I will tell Alibre
> > this year that I no longer feel the need to pay support after way more
> than
> > 16 years of support payments (I have drawings from 2006).
> >
> > From what I can see FreeCAD doesn't do CAM.  I have no interest in using
> > Fusion360.  Both Fusion360, FreeCAD and the VisualCAD user interface
> > confuse me.  Just can't seem to learn them while I find AlibreCAD easy.
> > But then I could never really effectively use AutoCAD either which is why
> > Alibre was so great when it showed up.
> >
> > What is out there for CAM G-Code generation?  Preferably integrated with
> > with the CAD package so one can go back and forth to tweak a drawing for
> > better CAM without having to start all over again with the CAD.
> >
> > Thanks
> > John
> >
> >
> >
> >
> > "ELS! Nothing else works as well for your Lathe"
> > Automation Artisans Inc.
> > www dot autoartisans dot com
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
>
> --
>
> Chris Albertson
> Redondo Beach, California
>
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Re: [Emc-users] losing encoder counts

[Sam Sokolik]

Lol..   I remember Chris R was working on rigid tapping at one of the fests
in galesberg..   He was using the mazak which had been converted to
linuxcnc..  (I think it had been worked on over a couple fests. ).  Anyway
- it didn't seem to be tracking the correct pitch..  (Tapping in plastic).
Chris was trying to think what could be wrong with his code and johnk
walked over and listened..  Then said 'could the z axis scale be off?'.  It
was..  I could see that situation cause you to go down a lot of rabbit
holes before thinking about the z axis scaling  (At least that is how I
remember it..). :)

On Wed, Oct 5, 2022, 9:59 PM Jon Elson  wrote:

> Wow, it gets deeper!
>
> It is NOT the encoder, or anything in the encoder-reading
> process.
>
> I marked the motor shaft, and the motor is returning to the
> exact same position every cycle.
>
> Well, I tried a different indicator and mount, and the
> problem was in the indicator mount!  I was using an old
> knock-off of an IndiCol that clamps around the spindle nose
> or end mill holder and has several rods with locking
> thumbnuts on them.  These swivel joints were slipping just a
> tiny bit each time the vise touched the indicator, even
> though they were PRETTY tight!  Ugh, 3 days of going around
> in circles trying to tell where the issue was!
>
> Jon
>
>
>
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Re: [Emc-users] losing encoder counts

[Sam Sokolik]

Our 80's vintage matsuura started losing counts when the 5v supply started
to lower..  don't remember how far down..
  Maybe 4.7v?

On Sun, Oct 2, 2022, 11:54 PM gene heskett  wrote:

> On 10/2/22 22:25, John Figie wrote:
> > So if you missed an A or a B pulse from the encoder I think you should
> see
> > the position count go in the opposite direction for one count. Another
> > words, instead of a position sequence of 0,1,2,3,4,5,6,7 you might see
> > instead 0,1,2,3,2,3, and in addition the time spent in 3 followed by 2
> > would each be twice as long.  So maybe if you can trigger on a non
> > monotonic position sequence you can capture the event.
> >
> > John Figie
> >
> > On Sun, Oct 2, 2022, 7:49 PM Jon Elson  wrote:
> >
> >> On 10/2/22 19:34, John Dammeyer wrote:
> >>> Oh boy does that bring back memories.
> >>> I started with the US Digital Encoders on the DC Servos.  According to
> >> the designer of the PIC upgrade board for the HP_UHU Servo drive the US
> >> Digital were crap and caused nothing but problems.
> >>> I switched to CUI and it appeared to be better.  Until one day circle
> >> milled inside a piece was off center.  See photo.
> >>> That’s when I started doing what you did and discovered that at very
> >> slow speeds I could return to the same 0 position but faster moves lost
> >> steps.  The error happened in only one direction.
> >>> Eventually I discovered that if I swapped the motor+encoder with the Y
> >> axis the problem moved to the Y so it wasn’t the HP_UHU drive.  Further
> >> research showed the X axis motor winding resistance was almost double
> that
> >> of the working Y axis motor.
> >>> It's possible I might have been able to fix the problem by doubling the
> >> current setting on the motor.  They were bought at the same time and
> were
> >> supposed to be identical.
> >>> I don't know why the HP_UHU servo drive didn't catch the position loss.
> >> Like yours, the encoder signals looked nice.The CUI encoders seem
> to be
> >> high
> >>> One other point.  I switched to the Bergerda AC Servo drives which to
> >> date have been great.  Talking to Donald Chen the sales guy at Bergerda
> he
> >> mentioned that their encoders are Japanese and more expensive than ones
> >> used on a lot of their competitors.  After that conversation I took one
> >> apart and checked part numbers.  Sure enough, Japanese design made in
> China.
> >>> So try different encoders.
> >> Yes, I did see some really strange signals on the scope
> >> before. I tore the whole motor/encoder set apart and cleaned
> >> the inside of the encoder.  But, optical components in the
> >> encoder are held in place with glue, 39 year old glue!  I'm
> >> having doubts that everything is still properly aligned in
> >> there.
> >>
> >> So, I'm leaning toward replacing the encoders with newer
> >> high-end encoders with higher line count.  But, that will
> >> require machining adapter plates and making sure the
> >> encoders are well-centered.
> >>
> >> Thanks,
> >>
> >> Jon
> Jon and John, I'd vote for a lack of good "star' grounding. Somehow the
> encoder is picking up noise from the
> motors reversal. So you are getting an extra noise pulse into the
> encoder wireng and its going to be direction
> switch related. A good star ground, and all that just goes away. Even
> with unshielded cables.
>
> The whole point of the star ground is that this common ground may not be
> quiet. But everything is
> referencing the same bolt.  that bolt may not be grounded to earth, and
> can be bouncing around 500 volts, but its
> carrying ALL the logic with it and the logic is only sensitive to the
> logic level between the wire from the encoder
> and that star bolt.  As far as individual line cords are concerned, only
> one third pin should actually get to the wall,
> More than one third pin is a ground loop and a noise src.
> >> .
> >>
> >>
> >> ___
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> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
> Cheers, Gene Heskett.
> --
> "There are four boxes to be used in defense of liberty:
>   soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
>   - Louis D. Brandeis
> Genes Web page 
>
>
>
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Re: [Emc-users] missing tooth index questions..

[Sam Sokolik]

https://www.youtube.com/watch?v=r4B-MksNBJQ

On Mon, Sep 19, 2022 at 3:34 PM Sam Sokolik  wrote:

> The blue is encoder position..  white in encoder position interpolated..
>
>
> https://electronicsam.com/images/emco/Screenshot%20from%202022-09-19%2015-28-44.png
>
> On Mon, Sep 19, 2022 at 2:05 PM John Dammeyer 
> wrote:
>
>> And is correct.  For RPM measurement a count of 6 is still required.
>> Here's my math for this.  Perhaps you can explain what position
>> interpolated means.
>>
>> So we have a spindle turning 6000 RPM or 50 RPS.  That means if we didn't
>> have the longer slot we'd see an edge every 0.00
>> seconds.
>>
>> Now assume our counter (parallel port for example) is running 20kHz.
>> That's a tick every 50 uS so divide that into 0.0033 seconds and you
>> get 66.66 counts before the next hole on the disk.
>>
>> In reality you would see 66 counts and then 67 counts and then 66 counts
>> etc. and then 133.33 counts for the index slot.
>>
>> Anyway, assume we test and can tell the difference between the slot and
>> the holes we get 66.  Multiply that by 0.50 (50uS) and we get the time
>> for one hole edge to hole edge which is 0.0033 seconds or inverted 303.
>> Scale it by 10 to get RPM which is 3030 RPM; out by 30 RPM.
>>
>> Next time we count 67 which works out to 2985 RPM; out by 15 RPM.
>>
>> Or we could accumulate 5 readings of 66,67,66,67,66 which gives us 66.4 a
>> bit closer at 3012 RPM but really not the 3000 we're actually turning.  And
>> if it's the other way around 67,66,67,66,67 it's 66.6 average and is 3003
>> RPM.  Closer.
>>
>> Increasing to 60 holes improves things but there will still be a certain
>> amount of jitter since we have repeating decimals in the math.  With 20kHz
>> we're still able to count 5 or 6 ticks but above that encoder count the
>> 20kHz tick clock has to be much faster.
>>
>> Anyway, that's how I'd calculate RPM.  What's the position interpolated.
>> And is there a better way to get more accurate RPM?
>> John
>>
>>
>>
>> > -Original Message-
>> > From: Sam Sokolik [mailto:samco...@gmail.com]
>> > Sent: September-19-22 10:20 AM
>> > To: Enhanced Machine Controller (EMC)
>> > Subject: Re: [Emc-users] missing tooth index questions..
>> >
>> > That was my plan - use position-interpolated..  100 counts is barely
>> enough
>> > for smooth motion.
>> >
>> > sam
>> >
>> > On Mon, Sep 19, 2022 at 11:51 AM andy pugh  wrote:
>> >
>> > > On Mon, 19 Sept 2022 at 17:06, John Dammeyer 
>> > > wrote:
>> > >
>> > > > No.
>> > > > A slot is still a hole.  So if you are counting,  say falling
>> edges, you
>> > > > will get 5 of them.  If you count rising edges you will get 5 of
>> them.
>> > >
>> > >
>> > > Actually, the missing-tooth scheme takes a different opinion. Each
>> hole
>> > > corresponds to 1/6 of a revolution, so the correct scale is 6. But it
>> only
>> > > responds to actual edges seen, so does not create a synthetic count
>> in the
>> > > middle of the gap, instead it recognises the approximately double
>> period
>> > > and adds two (or more) counts when it sees the gap.
>> > >
>> > > Using position-interpolated will smooth through this jitter.
>> > >
>> > > --
>> > > atp
>> > > "A motorcycle is a bicycle with a pandemonium attachment and is
>> designed
>> > > for the especial use of mechanical geniuses, daredevils and lunatics."
>> > > � George Fitch, Atlanta Constitution Newspaper, 1912
>> > >
>> > > ___
>> > > Emc-users mailing list
>> > > Emc-users@lists.sourceforge.net
>> > > https://lists.sourceforge.net/lists/listinfo/emc-users
>> > >
>> >
>> > ___
>> > Emc-users mailing list
>> > Emc-users@lists.sourceforge.net
>> > https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>>
>>
>> ___
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>>
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Re: [Emc-users] missing tooth index questions..

[Sam Sokolik]

The blue is encoder position..  white in encoder position interpolated..

https://electronicsam.com/images/emco/Screenshot%20from%202022-09-19%2015-28-44.png

On Mon, Sep 19, 2022 at 2:05 PM John Dammeyer 
wrote:

> And is correct.  For RPM measurement a count of 6 is still required.
> Here's my math for this.  Perhaps you can explain what position
> interpolated means.
>
> So we have a spindle turning 6000 RPM or 50 RPS.  That means if we didn't
> have the longer slot we'd see an edge every 0.00
> seconds.
>
> Now assume our counter (parallel port for example) is running 20kHz.
> That's a tick every 50 uS so divide that into 0.0033 seconds and you
> get 66.66 counts before the next hole on the disk.
>
> In reality you would see 66 counts and then 67 counts and then 66 counts
> etc. and then 133.33 counts for the index slot.
>
> Anyway, assume we test and can tell the difference between the slot and
> the holes we get 66.  Multiply that by 0.50 (50uS) and we get the time
> for one hole edge to hole edge which is 0.0033 seconds or inverted 303.
> Scale it by 10 to get RPM which is 3030 RPM; out by 30 RPM.
>
> Next time we count 67 which works out to 2985 RPM; out by 15 RPM.
>
> Or we could accumulate 5 readings of 66,67,66,67,66 which gives us 66.4 a
> bit closer at 3012 RPM but really not the 3000 we're actually turning.  And
> if it's the other way around 67,66,67,66,67 it's 66.6 average and is 3003
> RPM.  Closer.
>
> Increasing to 60 holes improves things but there will still be a certain
> amount of jitter since we have repeating decimals in the math.  With 20kHz
> we're still able to count 5 or 6 ticks but above that encoder count the
> 20kHz tick clock has to be much faster.
>
> Anyway, that's how I'd calculate RPM.  What's the position interpolated.
> And is there a better way to get more accurate RPM?
> John
>
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: September-19-22 10:20 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] missing tooth index questions..
> >
> > That was my plan - use position-interpolated..  100 counts is barely
> enough
> > for smooth motion.
> >
> > sam
> >
> > On Mon, Sep 19, 2022 at 11:51 AM andy pugh  wrote:
> >
> > > On Mon, 19 Sept 2022 at 17:06, John Dammeyer 
> > > wrote:
> > >
> > > > No.
> > > > A slot is still a hole.  So if you are counting,  say falling edges,
> you
> > > > will get 5 of them.  If you count rising edges you will get 5 of
> them.
> > >
> > >
> > > Actually, the missing-tooth scheme takes a different opinion. Each hole
> > > corresponds to 1/6 of a revolution, so the correct scale is 6. But it
> only
> > > responds to actual edges seen, so does not create a synthetic count in
> the
> > > middle of the gap, instead it recognises the approximately double
> period
> > > and adds two (or more) counts when it sees the gap.
> > >
> > > Using position-interpolated will smooth through this jitter.
> > >
> > > --
> > > atp
> > > "A motorcycle is a bicycle with a pandemonium attachment and is
> designed
> > > for the especial use of mechanical geniuses, daredevils and lunatics."
> > > � George Fitch, Atlanta Constitution Newspaper, 1912
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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Re: [Emc-users] missing tooth index questions..

[Sam Sokolik]

That was my plan - use position-interpolated..  100 counts is barely enough
for smooth motion.

sam

On Mon, Sep 19, 2022 at 11:51 AM andy pugh  wrote:

> On Mon, 19 Sept 2022 at 17:06, John Dammeyer 
> wrote:
>
> > No.
> > A slot is still a hole.  So if you are counting,  say falling edges, you
> > will get 5 of them.  If you count rising edges you will get 5 of them.
>
>
> Actually, the missing-tooth scheme takes a different opinion. Each hole
> corresponds to 1/6 of a revolution, so the correct scale is 6. But it only
> responds to actual edges seen, so does not create a synthetic count in the
> middle of the gap, instead it recognises the approximately double period
> and adds two (or more) counts when it sees the gap.
>
> Using position-interpolated will smooth through this jitter.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
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Re: [Emc-users] missing tooth index questions..

[Sam Sokolik]

well - the mouse sensor seems to work up to 400rpm..  About the fastest I
can do without breaking something...

https://electronicsam.com/images/emco/Screenshot%20from%202022-09-18%2021-03-39.png

https://photos.app.goo.gl/GRgXpfJwB7hCZBMT7

sensor board still needs to be fastened to the 3d printed part..  (might
just heatmelt the line up pins..

sam

On Sun, Sep 18, 2022 at 8:58 PM Sam Sokolik  wrote:

> yep - andy is a genius...
> (and halscope is really cool..)
>
> I triggered on the rising edge of the index enable and put it one rotation
> back..   You can see the position is counting up by .01 each time by the
> steps.  Then the gap happens and the next step is .02 so the rotation
> position ends at 1...
>
>
> https://electronicsam.com/images/emco/Screenshot%20from%202022-09-18%2020-55-28.png
>
> On Sun, Sep 18, 2022 at 6:48 PM Sam Sokolik  wrote:
>
>> ok..  It might be working?   I made a hal component that would set index
>> enable to true after so many encoder counts.   I set it to 998 (<10
>> rotations) to set the index enable to true.. and the encoder position was
>> 9.98...
>>
>> so it isn't losing every rotation.  so I 'think' it is working right...
>>
>>
>> https://electronicsam.com/images/emco/Screenshot%20from%202022-09-18%2018-41-42.png
>>
>> sam
>>
>> On Sun, Sep 18, 2022 at 5:54 PM Ed  wrote:
>>
>>> On 9/18/22 5:24 PM, Martin Dobbins wrote:
>>> > Er 100 minus 2 (the holes you cut metal between is 98?
>>>
>>> He cut out the metal between two holes to make 99 holes, one being twice
>>> as wide as the rest. Did I follow that right?
>>>
>>> > 
>>> > From: Ed 
>>> > Sent: Sunday, September 18, 2022 4:53 PM
>>> > To: emc-users@lists.sourceforge.net 
>>> > Subject: Re: [Emc-users] missing tooth index questions..
>>> >
>>> > On 9/18/22 3:50 PM, Sam Sokolik wrote:
>>> >> I have a optical encoder from a mouse running on an emco encoder
>>> wheel (100
>>> >> holes).  I cut out the metal between 2 holes.  I think that would be
>>> >> considered one missing tooth...  I have the encoder scale set to 100
>>> and
>>>
>>>
>>>
>>>
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Re: [Emc-users] missing tooth index questions..

[Sam Sokolik]

yep - andy is a genius...
(and halscope is really cool..)

I triggered on the rising edge of the index enable and put it one rotation
back..   You can see the position is counting up by .01 each time by the
steps.  Then the gap happens and the next step is .02 so the rotation
position ends at 1...

https://electronicsam.com/images/emco/Screenshot%20from%202022-09-18%2020-55-28.png

On Sun, Sep 18, 2022 at 6:48 PM Sam Sokolik  wrote:

> ok..  It might be working?   I made a hal component that would set index
> enable to true after so many encoder counts.   I set it to 998 (<10
> rotations) to set the index enable to true.. and the encoder position was
> 9.98...
>
> so it isn't losing every rotation.  so I 'think' it is working right...
>
>
> https://electronicsam.com/images/emco/Screenshot%20from%202022-09-18%2018-41-42.png
>
> sam
>
> On Sun, Sep 18, 2022 at 5:54 PM Ed  wrote:
>
>> On 9/18/22 5:24 PM, Martin Dobbins wrote:
>> > Er 100 minus 2 (the holes you cut metal between is 98?
>>
>> He cut out the metal between two holes to make 99 holes, one being twice
>> as wide as the rest. Did I follow that right?
>>
>> > 
>> > From: Ed 
>> > Sent: Sunday, September 18, 2022 4:53 PM
>> > To: emc-users@lists.sourceforge.net 
>> > Subject: Re: [Emc-users] missing tooth index questions..
>> >
>> > On 9/18/22 3:50 PM, Sam Sokolik wrote:
>> >> I have a optical encoder from a mouse running on an emco encoder wheel
>> (100
>> >> holes).  I cut out the metal between 2 holes.  I think that would be
>> >> considered one missing tooth...  I have the encoder scale set to 100
>> and
>>
>>
>>
>>
>> ___
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Re: [Emc-users] missing tooth index questions..

[Sam Sokolik]

ok..  It might be working?   I made a hal component that would set index
enable to true after so many encoder counts.   I set it to 998 (<10
rotations) to set the index enable to true.. and the encoder position was
9.98...

so it isn't losing every rotation.  so I 'think' it is working right...

https://electronicsam.com/images/emco/Screenshot%20from%202022-09-18%2018-41-42.png

sam

On Sun, Sep 18, 2022 at 5:54 PM Ed  wrote:

> On 9/18/22 5:24 PM, Martin Dobbins wrote:
> > Er 100 minus 2 (the holes you cut metal between is 98?
>
> He cut out the metal between two holes to make 99 holes, one being twice
> as wide as the rest. Did I follow that right?
>
> > 
> > From: Ed 
> > Sent: Sunday, September 18, 2022 4:53 PM
> > To: emc-users@lists.sourceforge.net 
> > Subject: Re: [Emc-users] missing tooth index questions..
> >
> > On 9/18/22 3:50 PM, Sam Sokolik wrote:
> >> I have a optical encoder from a mouse running on an emco encoder wheel
> (100
> >> holes).  I cut out the metal between 2 holes.  I think that would be
> >> considered one missing tooth...  I have the encoder scale set to 100 and
>
>
>
>
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Re: [Emc-users] missing tooth index questions..

[Sam Sokolik]

in case that screenshot didn't come through

https://electronicsam.com/images/emco/Screenshot%20from%202022-09-18%2015-43-25.png

On Sun, Sep 18, 2022 at 3:50 PM Sam Sokolik  wrote:

> I have a optical encoder from a mouse running on an emco encoder wheel
> (100 holes).  I cut out the metal between 2 holes.  I think that would be
> considered one missing tooth...  I have the encoder scale set to 100 and
> the missing tooth set to 1
>
> I have a little comp that sets the index enable to true whenever it is
> false.
>
> Looking at the halscope screen shot - it only counts to 98..  I would
> think it would count from 0 to 99.  You can see the gap is seen - but I
> think there should be an extra count in there..
>
> (I could be not understanding it too)
>
> ps - if I set the missing teeth to 2 - it will not trigger (like it
> doesn't see the gap then which seems correct)
>
> thanks!
> sam
>

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[Emc-users] missing tooth index questions..

[Sam Sokolik]

I have a optical encoder from a mouse running on an emco encoder wheel (100
holes).  I cut out the metal between 2 holes.  I think that would be
considered one missing tooth...  I have the encoder scale set to 100 and
the missing tooth set to 1

I have a little comp that sets the index enable to true whenever it is
false.

Looking at the halscope screen shot - it only counts to 98..  I would think
it would count from 0 to 99.  You can see the gap is seen - but I think
there should be an extra count in there..

(I could be not understanding it too)

ps - if I set the missing teeth to 2 - it will not trigger (like it doesn't
see the gap then which seems correct)

thanks!
sam
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Re: [Emc-users] 7i76e with Rpi4

[Sam Sokolik]

can you ping 10.10.10.10?

On Sun, Sep 18, 2022 at 10:13 AM Alan Condit  wrote:

> I am trying to get my Raspberry Pi4 working with my 7i76e. I have the ip
> address set to 10.10.10.11 and number W3 set up. I generated a report.
> Maybe it is just not finding the 7i76e board. Can anyone give me a clue?
>
> Thanks,
> Alan
>
> >
> linuxcnc.report
> >
> myPCBMill.hal
> >
> myPCBMill.ini
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Re: [Emc-users] Acorn CNC

[Sam Sokolik]

I did a little video where I made a charge pump to work with one of those
cheap BOBs...

https://www.youtube.com/watch?v=RErLu73-Xno

On Fri, Sep 9, 2022 at 8:00 AM  wrote:

> On 2022-09-09 07:19, m...@mattshaver.com wrote:
>
> > I am in awe of Den-Mother Steve for his ability to make good
> > quality electronic stuff at a reasonable price!
>
> Oops! just realized this was emc-users, not the CAMS list (Chesapeake
> Area Metalworking Society http://www.cams-club.org/). I was trying to
> refer to Steve Stallings of Practical Micro Design
> (http://www.pmdx.com/). It's too early for me :)
>
> Thanks,
> Matt
>
>
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Re: [Emc-users] Acorn CNC

[Sam Sokolik]

Same..  I have used whatever gui editor is installed..  (gedit, mousepad,
whatever)  No weird behaviour..  (when not using nano for system files.. ;)
)

On Thu, Sep 8, 2022 at 8:10 AM Mark Wendt  wrote:

> On Thu, Sep 8, 2022 at 8:07 AM gene heskett  wrote:
>
> >
> > There is your first mistake GEDIT. It will eventually play 52 pickup
> > with your code. I banned it from
> > any system here years ago, Switched to geany as a nearly work alike, and
> > have not had a single
> > instance of gibberish that I didn't type since. The 3rd time it
> > destroyed a 700+ LOC .hal file for me
> > and it took me a week or more to recreate it was the last straw.
> >
>
> Not sure why you've had issues with gedit.  I've used that application for
> nigh on 25 years and never had a problem with it, whether writing
> complicated shell scripts, programming in different languages.  It's still
> a staple application I use quite often
>
> >
> >
> > Cheers, Gene Heskett.
> >
>
> Mark
>
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Re: [Emc-users] Acorn CNC

[Sam Sokolik]

I always thought nativecam looked neat...  (I don't think I have ever
played with it and I also think it is based on python2)  (so I don't know
how up-to date it is)

https://forum.linuxcnc.org/nativecam

sam

On Wed, Sep 7, 2022 at 2:10 PM Sam Sokolik  wrote:

> pathpilot is setup to run tormach machines.  There is no 'setup' program.
>
> sam
>
> On Wed, Sep 7, 2022 at 1:55 PM John Dammeyer 
> wrote:
>
>> > From: ken.stra...@sympatico.ca [mailto:ken.stra...@sympatico.ca]
>> > Subject: Re: [Emc-users] Acorn CNC
>> >
>> > Yes and no. Pathpilot is free but it comes on a USB stick which is
>> > chargeable. See https://tormach.com/search/?q=pathpilot%20upgrade
>> >
>> > -Original Message-
>> > From: John Dammeyer 
>> > > From: Groups [mailto:gro...@homanndesigns.com] John,
>> > >
>> > > Have a look at PathPilot. I've just converted my Mill to it from Mach3
>> > > using a 7i92. It has the benefits of LinuxCNC but with an interface
>> > > closer to Mach3 when it comes to wizards.
>> > >
>> > > Cheers,
>> > >
>> > > Peter
>> > >
>> >
>> > Peter
>> > How does one get Path Pilot?  Is it free?
>> > John
>>
>>
>> So we just pay $24.95+ shipping.  Insert into system and boot and it
>> installs LinuxCNC and Path Pilot user interface?  And since I don't have
>> Tormach I'd then have to go through the process of configuring the HAL and
>> INI files?
>>
>> And for a simpler operating like surfacing something held in the vise or
>> clamped to the table there's an approach like the attached photo or must
>> one still write G-Code or use CAM to do this?
>>
>> Perhaps a Path Pilot user can post a screen shot like the one attached
>> that shows how to do this?
>>
>> Thanks
>> John
>>
>>
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Re: [Emc-users] Acorn CNC

[Sam Sokolik]

pathpilot is setup to run tormach machines.  There is no 'setup' program.

sam

On Wed, Sep 7, 2022 at 1:55 PM John Dammeyer  wrote:

> > From: ken.stra...@sympatico.ca [mailto:ken.stra...@sympatico.ca]
> > Subject: Re: [Emc-users] Acorn CNC
> >
> > Yes and no. Pathpilot is free but it comes on a USB stick which is
> > chargeable. See https://tormach.com/search/?q=pathpilot%20upgrade
> >
> > -Original Message-
> > From: John Dammeyer 
> > > From: Groups [mailto:gro...@homanndesigns.com] John,
> > >
> > > Have a look at PathPilot. I've just converted my Mill to it from Mach3
> > > using a 7i92. It has the benefits of LinuxCNC but with an interface
> > > closer to Mach3 when it comes to wizards.
> > >
> > > Cheers,
> > >
> > > Peter
> > >
> >
> > Peter
> > How does one get Path Pilot?  Is it free?
> > John
>
>
> So we just pay $24.95+ shipping.  Insert into system and boot and it
> installs LinuxCNC and Path Pilot user interface?  And since I don't have
> Tormach I'd then have to go through the process of configuring the HAL and
> INI files?
>
> And for a simpler operating like surfacing something held in the vise or
> clamped to the table there's an approach like the attached photo or must
> one still write G-Code or use CAM to do this?
>
> Perhaps a Path Pilot user can post a screen shot like the one attached
> that shows how to do this?
>
> Thanks
> John
>
>
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Re: [Emc-users] Acorn CNC

[Sam Sokolik]

I have almost stopped evangelizing linuxcnc... (almost)  People are going
to use what they are going to use.  I just try to put out how cool and
flexible linuxcnc is..

The acon is really one of the few hobby grade controllers that can thread
and rigid tap.   Plus you have the history of the centroid front end (it is
exactly the same as their expensive controls)

You certainly pay a premium and every option is an extra $$$  (and it is a
pretty rigid platform)

sam

On Tue, Sep 6, 2022 at 7:53 PM Bari  wrote:

> On 9/6/22 19:06, John Dammeyer wrote:
>
> > If I was to offer an reason to go LinuxCNC to someone who is attracted
> to an Acorn system what would I say.  Other than the Acorn is really just a
> cape for a BeagleBone Black.  But the user interface is all via Ethernet so
> a PC of some sort is still required.
> >
> > There appear to be so many CNC systems out there now.  Even LinuxCNC now
> suffers from too many user interfaces to the point where is the Tormach
> really still LinuxCNC or is it something different too?
> >
> > Comments?
> > John
>
>
> For me LCNC has always been about flexibility and endless options since
> we have open source and HAL. For a simple CNC it's really up to whatever
> you like or comfortable paying for. Centroid is closed and you will get
> charged for every option.
>
>
>
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Re: [Emc-users] rtapi_app: caught signal 8 - dumping core

[Sam Sokolik]

If I can remember how to do a git bisect - I will try to figure out when it
happened..   Probably won't happen till the weekend.

On Thu, Sep 1, 2022, 11:48 PM Bari  wrote:

>
> https://forum.linuxcnc.org/49-basic-configuration/46796-rtapi-app-caught-signal-8-dumping-core
>
> All the files are here.  ^^
>
> On 9/1/22 22:42, Sam Sokolik wrote:
> > Bary - Could we get all the files?
> > custompanel.xml
> > postgui_call_list.hal
> > custom.hal
> >
> > I just built RIP on buster and ran the config (remarking out the missing
> > files)
> > I have an encoder in pin 10 and 11 and it seems to work with no crash.
> >
> > sam
> >
> >
> > On Thu, Sep 1, 2022 at 9:45 PM Bari  wrote:
> >
> >> Brand new setup using stepconf.   if I spin the spindle encoder quickly
> >> by hand I get: rtapi_app: caught signal 8 - dumping core
> >>
> >> Even if the machine is still in e-stop.   Simple config using stepconf
> >> LINUXCNC - 2.9.0~pre0
> >>
> >> All default settings other than manual edit of LPT base address and
> >> changed   setp encoder.0.position-scale 4000.00Default is like
> >> 100 vs 4000
> >>
> >> Any ideas what causes this error?
> >>
> >> https://forum.linuxcnc.org/media/kunena/attachments/1324/simple.ini
> >>
> >> https://forum.linuxcnc.org/media/kunena/attachments/1324/simple.hal
> >>
> >> The only mention of a similar error:
> >> forum.linuxcnc.org/24-hal-components/358...hercat-lcec?start=10
> >>
> >>
> >>
> >> ___
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> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
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>
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Re: [Emc-users] rtapi_app: caught signal 8 - dumping core

[Sam Sokolik]

oh - I think we are both running buster too...  (it happens with just those
to files (ini and hal)  when spinning an encoder hooked to pin 10 and 11 of
the printer port.  (happens pretty quick)

sam

On Thu, Sep 1, 2022 at 11:25 PM Sam Sokolik  wrote:

> I can get it to do it in a freshly built 2.9.0~pre0 - doesn't seem to do
> it in 2.8.2
>
> rtapi_app: caught signal 8 - dumping core
>
> exiting linuxcnc gets you
> Shutting down and cleaning up LinuxCNC...
> task: 2145 cycles, min=0.07, max=0.013650, avg=0.009993, 0 latency
> excursions (> 10x expected cycle time of 0.01s)
> USRMOT: ERROR: command timeout
> Waited 3 seconds for master.  giving up.
> Note: Using POSIX realtime
> pwmgen: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> lowpass: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> scale: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> abs: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> encoder: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> stepgen: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> hal_parport: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> motmod: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> trivkins: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> homemod: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> Note: Using POSIX realtime
> tpmod: not loaded
> :0: exit value: 255
> :0: rmmod failed, returned -1
> :0: unloadrt failed
> Note: Using POSIX realtime
>
>
>
> On Thu, Sep 1, 2022 at 10:42 PM Sam Sokolik  wrote:
>
>> Bary - Could we get all the files?
>> custompanel.xml
>> postgui_call_list.hal
>> custom.hal
>>
>> I just built RIP on buster and ran the config (remarking out the missing
>> files)
>> I have an encoder in pin 10 and 11 and it seems to work with no crash.
>>
>> sam
>>
>>
>> On Thu, Sep 1, 2022 at 9:45 PM Bari  wrote:
>>
>>> Brand new setup using stepconf.   if I spin the spindle encoder quickly
>>> by hand I get: rtapi_app: caught signal 8 - dumping core
>>>
>>> Even if the machine is still in e-stop.   Simple config using stepconf
>>> LINUXCNC - 2.9.0~pre0
>>>
>>> All default settings other than manual edit of LPT base address and
>>> changed   setp encoder.0.position-scale 4000.00Default is like
>>> 100 vs 4000
>>>
>>> Any ideas what causes this error?
>>>
>>> https://forum.linuxcnc.org/media/kunena/attachments/1324/simple.ini
>>>
>>> https://forum.linuxcnc.org/media/kunena/attachments/1324/simple.hal
>>>
>>> The only mention of a similar error:
>>> forum.linuxcnc.org/24-hal-components/358...hercat-lcec?start=10
>>>
>>>
>>>
>>> ___
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>>> Emc-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>
>>

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Re: [Emc-users] rtapi_app: caught signal 8 - dumping core

[Sam Sokolik]

I can get it to do it in a freshly built 2.9.0~pre0 - doesn't seem to do it
in 2.8.2

rtapi_app: caught signal 8 - dumping core

exiting linuxcnc gets you
Shutting down and cleaning up LinuxCNC...
task: 2145 cycles, min=0.07, max=0.013650, avg=0.009993, 0 latency
excursions (> 10x expected cycle time of 0.01s)
USRMOT: ERROR: command timeout
Waited 3 seconds for master.  giving up.
Note: Using POSIX realtime
pwmgen: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
lowpass: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
scale: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
abs: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
encoder: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
stepgen: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
hal_parport: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
motmod: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
trivkins: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
homemod: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
Note: Using POSIX realtime
tpmod: not loaded
:0: exit value: 255
:0: rmmod failed, returned -1
:0: unloadrt failed
Note: Using POSIX realtime



On Thu, Sep 1, 2022 at 10:42 PM Sam Sokolik  wrote:

> Bary - Could we get all the files?
> custompanel.xml
> postgui_call_list.hal
> custom.hal
>
> I just built RIP on buster and ran the config (remarking out the missing
> files)
> I have an encoder in pin 10 and 11 and it seems to work with no crash.
>
> sam
>
>
> On Thu, Sep 1, 2022 at 9:45 PM Bari  wrote:
>
>> Brand new setup using stepconf.   if I spin the spindle encoder quickly
>> by hand I get: rtapi_app: caught signal 8 - dumping core
>>
>> Even if the machine is still in e-stop.   Simple config using stepconf
>> LINUXCNC - 2.9.0~pre0
>>
>> All default settings other than manual edit of LPT base address and
>> changed   setp encoder.0.position-scale 4000.00Default is like
>> 100 vs 4000
>>
>> Any ideas what causes this error?
>>
>> https://forum.linuxcnc.org/media/kunena/attachments/1324/simple.ini
>>
>> https://forum.linuxcnc.org/media/kunena/attachments/1324/simple.hal
>>
>> The only mention of a similar error:
>> forum.linuxcnc.org/24-hal-components/358...hercat-lcec?start=10
>>
>>
>>
>> ___
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>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

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Re: [Emc-users] rtapi_app: caught signal 8 - dumping core

[Sam Sokolik]

Bary - Could we get all the files?
custompanel.xml
postgui_call_list.hal
custom.hal

I just built RIP on buster and ran the config (remarking out the missing
files)
I have an encoder in pin 10 and 11 and it seems to work with no crash.

sam


On Thu, Sep 1, 2022 at 9:45 PM Bari  wrote:

> Brand new setup using stepconf.   if I spin the spindle encoder quickly
> by hand I get: rtapi_app: caught signal 8 - dumping core
>
> Even if the machine is still in e-stop.   Simple config using stepconf
> LINUXCNC - 2.9.0~pre0
>
> All default settings other than manual edit of LPT base address and
> changed   setp encoder.0.position-scale 4000.00Default is like
> 100 vs 4000
>
> Any ideas what causes this error?
>
> https://forum.linuxcnc.org/media/kunena/attachments/1324/simple.ini
>
> https://forum.linuxcnc.org/media/kunena/attachments/1324/simple.hal
>
> The only mention of a similar error:
> forum.linuxcnc.org/24-hal-components/358...hercat-lcec?start=10
>
>
>
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Re: [Emc-users] Printer ports are not dead yet! (linuxcnc closing the servo loop with $10 pci card)

[Sam Sokolik]

some mansplaining..

https://www.youtube.com/watch?v=VWXCAxUzXK0

On Tue, Aug 23, 2022 at 4:40 PM Sam Sokolik  wrote:

> The spindle motor is a brushed dc.  I am planning on using another amc
> drive to drive it...
>
> On Tue, Aug 23, 2022, 4:33 PM  wrote:
>
>> On 2022-08-23 19:29, Sam Sokolik wrote:
>> > Little Emco lathe with some pittman servos...   Amc drive that takes
>> > PWM+Dir.
>> >
>>
>> Looks pretty smooth to me.
>> What Pittman servos are those?
>> What will you do with the spindle drive motor? Servo?
>>
>> Marcus
>>
>>
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Re: [Emc-users] Printer ports are not dead yet! (linuxcnc closing the servo loop with $10 pci card)

[Sam Sokolik]

The spindle motor is a brushed dc.  I am planning on using another amc
drive to drive it...

On Tue, Aug 23, 2022, 4:33 PM  wrote:

> On 2022-08-23 19:29, Sam Sokolik wrote:
> > Little Emco lathe with some pittman servos...   Amc drive that takes
> > PWM+Dir.
> >
>
> Looks pretty smooth to me.
> What Pittman servos are those?
> What will you do with the spindle drive motor? Servo?
>
> Marcus
>
>
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[Emc-users] Printer ports are not dead yet! (linuxcnc closing the servo loop with $10 pci card)

[Sam Sokolik]

Little Emco lathe with some pittman servos...   Amc drive that takes
PWM+Dir.

https://www.youtube.com/watch?v=sUz5ZZyf2LU

Of course caveats..
-with the input scale of 50800/inch - speed limited to about 35ipm.
(probably fast enough for me)
-Tuning has to be good - because if there is an oscillation - it
oscillates faster than the computer can count..

Other than that.Seems like it would work ok...

(a mesa card like the 7i92 would be way better)  but this shows that you
could get into basic closed loop servo control for the price of a printer
port - you can still get them and pci-e is still a thing..

sam

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Re: [Emc-users] Linuxcnc OEM?

[Sam Sokolik]

And - OMG - Hi Matt!!

On Thu, Jul 21, 2022 at 9:57 AM Sam Sokolik  wrote:

> I thought (and maybe I am wrong) that nist was trying to make a
> standardized control to give to all of their military manufacturers so
> anyone could run a standard gcode program to make part x..
>
> sam
>
> On Thu, Jul 21, 2022 at 9:53 AM  wrote:
>
>> On 2022-07-21 04:32, andy pugh wrote:
>> > On Thu, 21 Jul 2022 at 03:22, Charles Steinkuehler
>> >  wrote:
>> >>
>> >> I'm not sure of their international shipping details, but Probotix
>> >> sells
>> >> LCNC based routers:
>> >>
>> >> https://www.probotix.com/
>> >
>> > Which mentions that they have (amusingly) sold LinuxCNC systems to
>> > NIST. :-)
>>
>> The circle of life...
>>
>>
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Re: [Emc-users] Linuxcnc OEM?

[Sam Sokolik]

I thought (and maybe I am wrong) that nist was trying to make a
standardized control to give to all of their military manufacturers so
anyone could run a standard gcode program to make part x..

sam

On Thu, Jul 21, 2022 at 9:53 AM  wrote:

> On 2022-07-21 04:32, andy pugh wrote:
> > On Thu, 21 Jul 2022 at 03:22, Charles Steinkuehler
> >  wrote:
> >>
> >> I'm not sure of their international shipping details, but Probotix
> >> sells
> >> LCNC based routers:
> >>
> >> https://www.probotix.com/
> >
> > Which mentions that they have (amusingly) sold LinuxCNC systems to
> > NIST. :-)
>
> The circle of life...
>
>
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Re: [Emc-users] Linuxcnc OEM?

[Sam Sokolik]

Charles!   How is it going?

On Wed, Jul 20, 2022, 9:21 PM Charles Steinkuehler 
wrote:

> I'm not sure of their international shipping details, but Probotix sells
> LCNC based routers:
>
> https://www.probotix.com/
>
> On 7/19/2022 8:13 AM, Todd Zuercher wrote:
> > Any one know if there are any machine builders (besides Tormach) using
> or offering Linuxcnc as a control option?  (More interested in a large
> router than a milling machine, lathe , or plasma cutter.)
> >
> > Todd Zuercher
> > P. Graham Dunn Inc.
> > 630 Henry Street
> > Dalton, Ohio 44618
> > Phone:  (330)828-2105ext. 2031
> >
> >
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> --
> Charles Steinkuehler
> char...@steinkuehler.net
>
>
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Re: [Emc-users] Linuxcnc OEM?

[Sam Sokolik]

I think CandCNC uses a modified version of linuxcnc..  Commandercnc

sam

On Tue, Jul 19, 2022 at 11:53 AM Todd Zuercher 
wrote:

> Any one know if there are any machine builders (besides Tormach) using or
> offering Linuxcnc as a control option?  (More interested in a large router
> than a milling machine, lathe , or plasma cutter.)
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
>
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Re: [Emc-users] Playing with G70/71 turning cycles..

[Sam Sokolik]

This is mostly the file - the one on the lathe I changed it to FPR and CSS

g64p.001
G54 G18

O100 SUB
G0x.5z.1
g1x.2811z0
x.4047z-.8788
x.3425z-.9409
x.3425z-1.0246
x.3691z-1.0512
x.3691z-1.1279
x.3232z-1.2075
x.3232z-2.3886
G0x.5z-2.6
O100 ENDSUB


G71 Q100 X.51 Z.1 D.01 I.02 R.03f10
G70 Q100 X.51 Z.1 E0 D0.005 P2
m30

On Mon, Jul 18, 2022 at 10:42 AM John Dammeyer 
wrote:

> Hi Sam,
> Would you please post the code for that?  I'd like to try and walk through
> it to figure out what you did.
> Thanks
> John
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: July-16-22 9:07 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: [Emc-users] Playing with G70/71 turning cycles..
> >
> > First real try playing with turning cycles.  Great work! - It took me a
> > couple trys to get the path to do what I wanted - but not too painful.
> Did
> > get linuxcnc into an infinite loop once.  Other than that.
> >
> > I write a lot of gcode by hand - this makes lathe work really easy.
> create
> > a simple profile - pass it though to G70,70,72..  easy peasy..
> >
> > https://www.youtube.com/watch?v=pzk0wM1HERY
> >
> > Oh - short video of CSS and FPR
> >
> > https://www.youtube.com/watch?v=tlEGmAbvuZs
> >
> > sam
> >
> > ___
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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[Emc-users] Playing with G70/71 turning cycles..

[Sam Sokolik]

First real try playing with turning cycles.  Great work! - It took me a
couple trys to get the path to do what I wanted - but not too painful.  Did
get linuxcnc into an infinite loop once.  Other than that.

I write a lot of gcode by hand - this makes lathe work really easy.  create
a simple profile - pass it though to G70,70,72..  easy peasy..

https://www.youtube.com/watch?v=pzk0wM1HERY

Oh - short video of CSS and FPR

https://www.youtube.com/watch?v=tlEGmAbvuZs

sam

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Re: [Emc-users] Cute lathe running css and fpr...

[Sam Sokolik]

BTW - that is a little 440w spindle motor...

On Mon, Jul 4, 2022 at 9:29 AM Sam Sokolik  wrote:

> Making a few chuck adaptors for some random chucks we have..  (this one is
> on the big size but will come in handy...)
>
> https://www.youtube.com/watch?v=tlEGmAbvuZs
>
> https://electronicsam.com/images/emco/PXL_20220702_233820082.jpg
>
> https://electronicsam.com/images/emco/PXL_20220703_224600927.jpg
>
> https://electronicsam.com/images/emco/PXL_20220703_224901039.jpg
>

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[Emc-users] Cute lathe running css and fpr...

[Sam Sokolik]

Making a few chuck adaptors for some random chucks we have..  (this one is
on the big size but will come in handy...)

https://www.youtube.com/watch?v=tlEGmAbvuZs

https://electronicsam.com/images/emco/PXL_20220702_233820082.jpg

https://electronicsam.com/images/emco/PXL_20220703_224600927.jpg

https://electronicsam.com/images/emco/PXL_20220703_224901039.jpg

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Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

gearing up for threading...

https://www.youtube.com/watch?v=tgtVG0S7OGs

On Sun, Apr 24, 2022 at 7:32 PM John Figie  wrote:

> Looks good. I need to catch up with my Clausing NC retrofit.
>
> John Figie
>
> On Sun, Apr 24, 2022 at 4:54 PM Sam Sokolik  wrote:
> >
> > First cuts...
> >
> > https://youtu.be/bpqFL3rZKBA
> >
> > On Fri, Apr 22, 2022, 3:27 PM Sam Sokolik  wrote:
> >
> > > Front side of the cross slide protected..  (1/8 neoprene..)
> > >
> > > https://photos.app.goo.gl/g8kzRGZWxxDzQRAA8
> > >
> > > On Mon, Apr 18, 2022 at 12:31 PM gene heskett 
> > > wrote:
> > >
> > >> On Monday, 18 April 2022 10:34:45 EDT Sam Sokolik wrote:
> > >> > Yes - acme for z.  (No key way).   We need to make covers for x.
> > >> I just inlaid a strip of paneling in the carriage slot in front the
> tool
> > >> post base, ditto for the bottom below the screw. My drive is a new
> shaft
> > >> and bearing in the front where the crank was.  The rear is still open.
> > >> And its open behind the tool post carrier when at center so I keep a
> rag
> > >> taped to the rear of the tool post base. I have a rear cover for it,
> but
> > >> have been too lazy to put it back on after finding the screw was long
> > >> enough to touch it and had to mill a thin spot to clear the end of the
> > >> screw.
> > >>
> > >> I had to get a 2NM motor for the front mount, the 3NM was too long to
> > >> clear the bed casting.  Even a 2 is overkill for that teeny screw, I
> > >> think its an 8mm screw.  Finding screws small enough for x drive on a
> > >> lathe is difficult, the nuts are too big the clear the bed. It was
> real
> > >> fun doing that on my 7x12, finally giving up and putting the motor on
> the
> > >> rear, where its too heavy lifting the front vway so I had to do the
> > >> kruger tapered gibs thing. That finally made a real lathe out of it.
> The
> > >> motors I took off the 6040 are quite a bit smaller, but still big
> enough
> > >> for the 7x12, so I may eventually put one of them on the back of the
> > >> 7x12.
> > >>
> > >> If I don't fall over first, I'm 87 now.  The older I get, the better I
> > >> WAS. ;o)
> > >>
> > >> Take care and stay well Sam.
> > >>
> > >>
> > >> Cheers, Gene Heskett.
> > >> --
> > >> "There are four boxes to be used in defense of liberty:
> > >>  soap, ballot, jury, and ammo. Please use in that order."
> > >> -Ed Howdershelt (Author, 1940)
> > >> If we desire respect for the law, we must first make the law
> respectable.
> > >>  - Louis D. Brandeis
> > >>
> > >>
> > >>
> > >>
> > >>
> > >> ___
> > >> Emc-users mailing list
> > >> Emc-users@lists.sourceforge.net
> > >> https://lists.sourceforge.net/lists/listinfo/emc-users
> > >>
> > >
> >
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
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Re: [Emc-users] Blown BOB and ???

[Sam Sokolik]

that looks crispy...


On Mon, May 2, 2022 at 2:25 PM Alan Condit  wrote:

> Andy, Chris, Dave and Jon,
>
> Here is a link to the photo .
> I guess it was too big to post directly.
>
> Alan
>
>
> On Mon, May 2, 2022 at 11:18 AM Alan Condit  wrote:
>
> > Chris, Andy, and Dave,
> >
> > I guess I didn’t give enough info. I built this controller in 2005 for my
> > lathe. I used it on my lathe until a couple of years ago when I added
> > another drive and switched this controller over to my PCBmill and X2 Mini
> > mill. I built a new controller for my lathe using a Mesa 5i25/7i76 pair
> so
> > I could control spindle speed. The picture shows the two blown out parts.
> > This controller worked for 15 years before letting the smoke out. I agree
> > Andy, that it is difficult for a fault to continue to generate steps but
> > that is what happened. It is possible that there was a design flaw but it
> > worked for 15 years.
> >  In the program where things went bad the X-axis should not have been
> > moving but it was. I was cutting a bushing for a keyway broach. For quite
> > awhile everything was going fine and then suddenly it began to cut into
> the
> > X direction when it was traveling in the Y direction. Then I saw smoke
> > coming out of the controller box.
> > Jon Elson suggested that I may have blown out the parallel port which
> > seems likely to me now that I think about the way it is behaving now.
> >
> > Alan
> >
> >
> >
> >> -- Forwarded message --
> >> From: Alan Condit 
> >> To: EMC-Users 
> >> Cc:
> >> Bcc:
> >> Date: Sun, 1 May 2022 09:49:43 -0500
> >> Subject: [Emc-users] Blown BOB and ???
> >> Hi Guys,
> >>
> >> I was machining a part on my X2 Minimill. Suddenly it left the
> programmed
> >> track (spoiled the part) and didn’t respond to Estop. I powered the
> system
> >> off manually raised the Z axis and tried turning it on so I could home
> it,
> >> smoke started coming from the controller. So I powered everything down
> and
> >> started troubleshooting.
> >> There were two chips on the CandCNC Mini-IO BOB that had let out the
> >> magic smoke. I had a spare BOB that I built using the Gecko G540
> schematic.
> >> So I replaced the other BOB with it. The drives in the controller are
> >> Superior Electric SS2000MD4 drives.
> >>
> >> When I got everything put back together and checked the wiring
> everything
> >> looked good so I tried powering it up. When I tried homing it the traces
> >> move in AXIS but there is no movement on the machine. The motors hold
> >> position so the output of the drives is active. Is it likely that I blew
> >> out the inputs on the drives?
> >>
> >> Thanks,
> >> Alan
> >>
> >>
> >>
> >>
> >> -- Forwarded message --
> >> From: Chris Albertson 
> >> To: "Enhanced Machine Controller (EMC)" <
> emc-users@lists.sourceforge.net>
> >> Cc:
> >> Bcc:
> >> Date: Sun, 1 May 2022 08:59:53 -0700
> >> Subject: Re: [Emc-users] Blown BOB and ???
> >> There is a good chance there was a wiring error in you original setup.
> >> The
> >> fact the E-stop did not work tells me there was a design error.  E-Stop
> >> should never fail, or rather if it does fail, the machine stops.  If the
> >> inputs on the drivers are blown, that says the same thing.  Smaething
> was
> >> wrong as that should never happen.
> >>
> >> Diagnosing a system that has a design fault is really hard because our
> >> brain tends to think of how a correct machine would function or how the
> >> machine we THOUGHT we built should function.
> >>
> >> The best plan is to ignore LCNC the BOB and all for now and see if you
> can
> >> drive the motor drivers with a simple signal generator and no computer.
> >>  If this does not work, you need to replace or repair the drivers before
> >> you think about reconnecting a computer.   If you need to buy some test
> >> equipment, now is the time.At least a cheap square wave signal
> >> generator and a cheap $12 logic analyzer t go with your multimeter.
> >>
> >> Finally, you should draw a schematic of how you propose to connect the
> >> computer and post it here for others to review.   They will check if
> >> nothing else the e-stop design to see that it is failsafe and also check
> >> that you have the power and computer parts properly isolated.   It seems
> >> this may not have been the case in the past, and you don't want to
> simply
> >> put it back the way it was.
> >>
> >> First step is to verify the motors and drivers work independently of
> >> computer control.
> >>
> >>
> >>
> >> Chris Albertson
> >> Redondo Beach, California
> >>
> >> -- Forwarded message --
> >> From: andy pugh 
> >> To: "Enhanced Machine Controller (EMC)" <
> emc-users@lists.sourceforge.net>
> >> Cc:
> >> Bcc:
> >> Date: Sun, 1 May 2022 21:23:48 +0100
> >> Subject: Re: [Emc-users] Blown BOB and ???
> >> On Sun, 1 May 2022 at 15:53, Alan Condit  wrote:
> >>
> >> > I was machining a part on my X2 Minimill. 

Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

First cuts...

https://youtu.be/bpqFL3rZKBA

On Fri, Apr 22, 2022, 3:27 PM Sam Sokolik  wrote:

> Front side of the cross slide protected..  (1/8 neoprene..)
>
> https://photos.app.goo.gl/g8kzRGZWxxDzQRAA8
>
> On Mon, Apr 18, 2022 at 12:31 PM gene heskett 
> wrote:
>
>> On Monday, 18 April 2022 10:34:45 EDT Sam Sokolik wrote:
>> > Yes - acme for z.  (No key way).   We need to make covers for x.
>> I just inlaid a strip of paneling in the carriage slot in front the tool
>> post base, ditto for the bottom below the screw. My drive is a new shaft
>> and bearing in the front where the crank was.  The rear is still open.
>> And its open behind the tool post carrier when at center so I keep a rag
>> taped to the rear of the tool post base. I have a rear cover for it, but
>> have been too lazy to put it back on after finding the screw was long
>> enough to touch it and had to mill a thin spot to clear the end of the
>> screw.
>>
>> I had to get a 2NM motor for the front mount, the 3NM was too long to
>> clear the bed casting.  Even a 2 is overkill for that teeny screw, I
>> think its an 8mm screw.  Finding screws small enough for x drive on a
>> lathe is difficult, the nuts are too big the clear the bed. It was real
>> fun doing that on my 7x12, finally giving up and putting the motor on the
>> rear, where its too heavy lifting the front vway so I had to do the
>> kruger tapered gibs thing. That finally made a real lathe out of it. The
>> motors I took off the 6040 are quite a bit smaller, but still big enough
>> for the 7x12, so I may eventually put one of them on the back of the
>> 7x12.
>>
>> If I don't fall over first, I'm 87 now.  The older I get, the better I
>> WAS. ;o)
>>
>> Take care and stay well Sam.
>>
>>
>> Cheers, Gene Heskett.
>> --
>> "There are four boxes to be used in defense of liberty:
>>  soap, ballot, jury, and ammo. Please use in that order."
>> -Ed Howdershelt (Author, 1940)
>> If we desire respect for the law, we must first make the law respectable.
>>  - Louis D. Brandeis
>>
>>
>>
>>
>>
>> ___
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>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

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Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

Front side of the cross slide protected..  (1/8 neoprene..)

https://photos.app.goo.gl/g8kzRGZWxxDzQRAA8

On Mon, Apr 18, 2022 at 12:31 PM gene heskett  wrote:

> On Monday, 18 April 2022 10:34:45 EDT Sam Sokolik wrote:
> > Yes - acme for z.  (No key way).   We need to make covers for x.
> I just inlaid a strip of paneling in the carriage slot in front the tool
> post base, ditto for the bottom below the screw. My drive is a new shaft
> and bearing in the front where the crank was.  The rear is still open.
> And its open behind the tool post carrier when at center so I keep a rag
> taped to the rear of the tool post base. I have a rear cover for it, but
> have been too lazy to put it back on after finding the screw was long
> enough to touch it and had to mill a thin spot to clear the end of the
> screw.
>
> I had to get a 2NM motor for the front mount, the 3NM was too long to
> clear the bed casting.  Even a 2 is overkill for that teeny screw, I
> think its an 8mm screw.  Finding screws small enough for x drive on a
> lathe is difficult, the nuts are too big the clear the bed. It was real
> fun doing that on my 7x12, finally giving up and putting the motor on the
> rear, where its too heavy lifting the front vway so I had to do the
> kruger tapered gibs thing. That finally made a real lathe out of it. The
> motors I took off the 6040 are quite a bit smaller, but still big enough
> for the 7x12, so I may eventually put one of them on the back of the
> 7x12.
>
> If I don't fall over first, I'm 87 now.  The older I get, the better I
> WAS. ;o)
>
> Take care and stay well Sam.
>
>
> Cheers, Gene Heskett.
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
>
>
>
>
>
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Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

Yes - acme for z.  (No key way).   We need to make covers for x.  It would
be nice to get a ball screw for z but have not found one yet.   The acme
will work fine for now.

On Mon, Apr 18, 2022, 6:54 AM gene heskett  wrote:

> On Monday, 18 April 2022 04:48:37 EDT John Dammeyer wrote:
> > I was asking Sam. From his video it looks like ACME.
>
> Yup, looks like the OEM screw complete with keyway. Looks like a Ball on
> x though. And its wide open to be wrecked by swarf.
>
> Needs a pair of smaller bellows similar to what I did for z on the
> Sheldon. Cheap 1450mm long c7 grade screw, works good enough for the
> girls I go with. Under $200 delivered on my front deck. If its off by the
> C7 grade specs, I haven't found where yet. I bought a 12" digital caliper
> & checked the first foot from the chuck, its as accurate as the caliper.
> I'm not equipt to do interferomter measurements.
>
> > > -Original Message-
> > > From: gene heskett [mailto:ghesk...@shentel.net]
> > > Sent: April-18-22 12:59 AM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Because I can't seem to finish anything...
> > > Nebel lathe conversion.>
> > > On Sunday, 17 April 2022 22:19:58 EDT John Dammeyer wrote:
> > > > Nice!
> > > >
> > > > Was the Z axis lead screw also a ball screw or did you leave that
> > > > as
> > > > ACME?  Has it an anti-backlash nut if still ACME? John
> > >
> > > Who are you asking John?
> > >
> > > > > -Original Message-
> > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > Sent: April-17-22 6:47 PM
> > > > > To: Enhanced Machine Controller (EMC)
> > > > > Subject: Re: [Emc-users] Because I can't seem to finish
> > > > > anything...
> > > > > Nebel lathe conversion.
> > > > >
> > > > > Mark - I will have to use that as an excuse..  :)
> > > > >
> > > > > 2 axis moving!
> > > > >
> > > > > https://www.youtube.com/watch?v=tItdEEDYy2g
> > > > >
> > > > > On Sun, Apr 10, 2022 at 11:10 AM Mark Johnsen 
> > >
> > > wrote:
> > > > > > Cool!
> > > > > >
> > > > > > On a side note, I just finished listening to Walter Isaacson's
> > > > > > biography on Leonardo Da Vinci and wanted to inform you that
> > > > > > you're in good company because he had serious issues finishing
> > > > > > projects.  Of course, humanity got the worse end of that by him
> > > > > > not publishing his work.   But, when you start to dwell on a
> > > > > > project that you haven't finished, just think, "Oh yeah,
> > > > > > Leonardo
> > > > > > didn't finish many of his projects either."
> > > > > >
> > > > > > On Sat, Apr 9, 2022 at 7:25 PM gene heskett
> > > > > > 
> > >
> > > wrote:
> > > > > > > On Saturday, 9 April 2022 21:27:26 EDT Sam Sokolik wrote:
> > > > > > > > X is almost ready to test...
> > > > > > > >
> > > > > > > > https://photos.app.goo.gl/GzyjvC49J2rTXyaG8
> > > > > > >
> > > > > > > Looking good Sam, similar to what I did to my Sheldon, but my
> > > > > > > motor mount is a sliding plate on the front of a much bigger
> > > > > > > 1/2" apron so I can screw drive the belt tension, and with
> > > > > > > stepper/servo's, only a 2/1 ratio stepdown. X speed max is
> > > > > > > just
> > > > > > > over 60" a minute with a 2NM 3 phase stepper motor. The rest
> > > > > > > of
> > > > > > > my apron has the encoder dials to drive it by hand. Seemed
> > > > > > > the
> > > > > > > ideal place to put them. Put them near where the cranks used
> > > > > > > to
> > > > > > > be.  Feels natural. I sealed up the tunnel the x screw is in,
> > > > > > > top and bottom so swarf can't get to it unless its past
> > > > > > > center
> > > > > > > going in.  And I put bellows on the z screw on both sides of
> > > > > > > the
> > > > > > > nut for its swarf protection. I even drilled two of the nuts
> > > 

Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

Mark - I will have to use that as an excuse..  :)

2 axis moving!

https://www.youtube.com/watch?v=tItdEEDYy2g

On Sun, Apr 10, 2022 at 11:10 AM Mark Johnsen  wrote:

> Cool!
>
> On a side note, I just finished listening to Walter Isaacson's biography on
> Leonardo Da Vinci and wanted to inform you that you're in good company
> because he had serious issues finishing projects.  Of course, humanity got
> the worse end of that by him not publishing his work.   But, when you start
> to dwell on a project that you haven't finished, just think, "Oh yeah,
> Leonardo didn't finish many of his projects either."
>
> On Sat, Apr 9, 2022 at 7:25 PM gene heskett  wrote:
>
> > On Saturday, 9 April 2022 21:27:26 EDT Sam Sokolik wrote:
> > > X is almost ready to test...
> > >
> > > https://photos.app.goo.gl/GzyjvC49J2rTXyaG8
> >
> > Looking good Sam, similar to what I did to my Sheldon, but my motor mount
> > is a sliding plate on the front of a much bigger 1/2" apron so I can
> > screw drive the belt tension, and with stepper/servo's, only a 2/1 ratio
> > stepdown. X speed max is just over 60" a minute with a 2NM 3 phase
> > stepper motor. The rest of my apron has the encoder dials to drive it by
> > hand. Seemed the ideal place to put them. Put them near where the cranks
> > used to be.  Feels natural. I sealed up the tunnel the x screw is in, top
> > and bottom so swarf can't get to it unless its past center going in.  And
> > I put bellows on the z screw on both sides of the nut for its swarf
> > protection. I even drilled two of the nuts 6 holes all the way thru so
> > rapid z movements could let the air get from one bellows to the other w/o
> > sucking in contaminents.
> >
> > > On Thu, Apr 7, 2022 at 8:18 AM Sam Sokolik  wrote:
> > > > Most likely it needs that movement because it can spin 30 + inches ;)
> >
> > If it can spin 30", what is the max spindle speed?
> > > > sam
> > > >
> > > > On Thu, Apr 7, 2022 at 5:46 AM andy pugh  wrote:
> > > >> On Wed, 6 Apr 2022 at 20:22, Sam Sokolik 
> wrote:
> > > >> > The cross slide has around 17 inches of travel... Crazy..
> > > >>
> > > >> For gang-tooling perhaps?
> > > >>
> > > >> --
> > > >> atp
> > > >> "A motorcycle is a bicycle with a pandemonium attachment and is
> > > >> designed for the especial use of mechanical geniuses, daredevils and
> > > >> lunatics."
> > > >> — George Fitch, Atlanta Constitution Newspaper, 1912
> > > >>
> > > >>
> > > >> ___
> > > >> Emc-users mailing list
> > > >> Emc-users@lists.sourceforge.net
> > > >> https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
> > Cheers, Gene Heskett.
> > --
> > "There are four boxes to be used in defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author, 1940)
> > If we desire respect for the law, we must first make the law respectable.
> >  - Louis D. Brandeis
> >
> >
> >
> >
> >
> > ___
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
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Re: [Emc-users] Coordinate systems for horizontal spindles

[Sam Sokolik]

I try to not look at the moving bits - that gets confusing..

On Mon, Apr 11, 2022 at 12:18 PM Sam Sokolik  wrote:

> Lol - I always make sure that when I am visualizing a piece of graph paper
> on the machine - when I command a positive for both x and y - the tool
> would move up and to the right on the paper..  (and Z negative gets the
> tool closer to the part)
>
> sam
>
> On Mon, Apr 11, 2022 at 12:07 PM Todd Zuercher 
> wrote:
>
>> I bet that there are a lot of horizontals out there configured backwards.
>> (Had never really thought about it myself, never worked with one.)
>>
>> Todd Zuercher
>> P. Graham Dunn Inc.
>> 630 Henry Street
>> Dalton, Ohio 44618
>> Phone:  (330)828-2105ext. 2031
>>
>> -Original Message-
>> From: andy pugh 
>> Sent: Monday, April 11, 2022 12:22 PM
>> To: Enhanced Machine Controller (EMC) 
>> Subject: [Emc-users] Coordinate systems for horizontal spindles
>>
>> [EXTERNAL EMAIL] Be sure links are safe.
>>
>> I realised last night that the coordinate system on my mill is incorrect
>> when I run the horizontal spindle.
>>
>> Curiously nearly every diagram that I can find online also seems to be
>> incorrect. Or, at least, ambiguous.
>>
>>
>> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fimages.app.goo.gl%2FXuzUowMJyK3ffabD9data=04%7C01%7Ctoddz%40pgrahamdunn.com%7Ce7b1ea09f6664d3146e308da1bd7be7a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637852910703088784%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=Vq2wnD%2FHC2j960X0o2xNMplBhRstQ%2FJggAdlnqtKTVE%3Dreserved=0
>> = Ambiguous
>>
>> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fimages.app.goo.gl%2FiczsGEAgDueBfnCT9data=04%7C01%7Ctoddz%40pgrahamdunn.com%7Ce7b1ea09f6664d3146e308da1bd7be7a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637852910703088784%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=N52HdspbmvhOdw%2BjnqoVksBY1VbGA%2B27UJjat8zG5ME%3Dreserved=0
>> = Left-handed
>>
>> And:
>> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fimages.app.goo.gl%2FdSkmwhBPRojMJXdx8data=04%7C01%7Ctoddz%40pgrahamdunn.com%7Ce7b1ea09f6664d3146e308da1bd7be7a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637852910703088784%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=VxL%2B02cEd5j%2BqADBgGG5RdhINmX3rzvTBUrBBIXFLio%3Dreserved=0
>> = Correct...
>>
>> It's taken me 10 years to notice, but I am going to have to reverse my X
>> axis in horizontal mode.
>>
>> --
>> atp
>> "A motorcycle is a bicycle with a pandemonium attachment and is designed
>> for the especial use of mechanical geniuses, daredevils and lunatics."
>> - George Fitch, Atlanta Constitution Newspaper, 1912
>>
>>
>> ___
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>>
>> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=04%7C01%7Ctoddz%40pgrahamdunn.com%7Ce7b1ea09f6664d3146e308da1bd7be7a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637852910703088784%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=VZmWPRkt%2Bk4aO5svD96KFi8rTin3D8qzWKNHuEQiBjU%3Dreserved=0
>>
>>
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Re: [Emc-users] Coordinate systems for horizontal spindles

[Sam Sokolik]

Lol - I always make sure that when I am visualizing a piece of graph paper
on the machine - when I command a positive for both x and y - the tool
would move up and to the right on the paper..  (and Z negative gets the
tool closer to the part)

sam

On Mon, Apr 11, 2022 at 12:07 PM Todd Zuercher 
wrote:

> I bet that there are a lot of horizontals out there configured backwards.
> (Had never really thought about it myself, never worked with one.)
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
> -Original Message-
> From: andy pugh 
> Sent: Monday, April 11, 2022 12:22 PM
> To: Enhanced Machine Controller (EMC) 
> Subject: [Emc-users] Coordinate systems for horizontal spindles
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> I realised last night that the coordinate system on my mill is incorrect
> when I run the horizontal spindle.
>
> Curiously nearly every diagram that I can find online also seems to be
> incorrect. Or, at least, ambiguous.
>
>
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fimages.app.goo.gl%2FXuzUowMJyK3ffabD9data=04%7C01%7Ctoddz%40pgrahamdunn.com%7Ce7b1ea09f6664d3146e308da1bd7be7a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637852910703088784%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=Vq2wnD%2FHC2j960X0o2xNMplBhRstQ%2FJggAdlnqtKTVE%3Dreserved=0
> = Ambiguous
>
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fimages.app.goo.gl%2FiczsGEAgDueBfnCT9data=04%7C01%7Ctoddz%40pgrahamdunn.com%7Ce7b1ea09f6664d3146e308da1bd7be7a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637852910703088784%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=N52HdspbmvhOdw%2BjnqoVksBY1VbGA%2B27UJjat8zG5ME%3Dreserved=0
> = Left-handed
>
> And:
> https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fimages.app.goo.gl%2FdSkmwhBPRojMJXdx8data=04%7C01%7Ctoddz%40pgrahamdunn.com%7Ce7b1ea09f6664d3146e308da1bd7be7a%7C5758544c573f47cebee96c3e0806fb43%7C0%7C0%7C637852910703088784%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000sdata=VxL%2B02cEd5j%2BqADBgGG5RdhINmX3rzvTBUrBBIXFLio%3Dreserved=0
> = Correct...
>
> It's taken me 10 years to notice, but I am going to have to reverse my X
> axis in horizontal mode.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> - George Fitch, Atlanta Constitution Newspaper, 1912
>
>
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>
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>
>
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Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

X is almost ready to test...

https://photos.app.goo.gl/GzyjvC49J2rTXyaG8


On Thu, Apr 7, 2022 at 8:18 AM Sam Sokolik  wrote:

> Most likely it needs that movement because it can spin 30 + inches ;)
>
> sam
>
> On Thu, Apr 7, 2022 at 5:46 AM andy pugh  wrote:
>
>> On Wed, 6 Apr 2022 at 20:22, Sam Sokolik  wrote:
>> >
>> > The cross slide has around 17 inches of travel... Crazy..
>>
>> For gang-tooling perhaps?
>>
>> --
>> atp
>> "A motorcycle is a bicycle with a pandemonium attachment and is
>> designed for the especial use of mechanical geniuses, daredevils and
>> lunatics."
>> — George Fitch, Atlanta Constitution Newspaper, 1912
>>
>>
>> ___
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Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

Most likely it needs that movement because it can spin 30 + inches ;)

sam

On Thu, Apr 7, 2022 at 5:46 AM andy pugh  wrote:

> On Wed, 6 Apr 2022 at 20:22, Sam Sokolik  wrote:
> >
> > The cross slide has around 17 inches of travel... Crazy..
>
> For gang-tooling perhaps?
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
> ___
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Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

The cross slide has around 17 inches of travel... Crazy..

https://photos.app.goo.gl/Z4NKdazgTGVAkPtD8
https://photos.app.goo.gl/hjk4Wb4kbZAjTnRZ9

sam





On Thu, Mar 24, 2022 at 6:53 AM Stuart Stevenson  wrote:

> The only thing I would add to Andy's comments about machining hard steel
> with carbide is to get a green stone and remove the built up edge after
> every pass. Heat is what kills the cutter.
>
> On Mon, Mar 21, 2022 at 11:34 AM Leonardo Marsaglia  >
> wrote:
>
> > >
> > > I have machined a number of ballscrews. Typically I peel of the outer
> > > hardened layer with CBN-tipped tools, but mainly because I have some.
> > > It can be done with normal carbide, though you might need more than
> > > one.
> > > Very high surface speed and very light cuts is the way to go.
> > >
> > > https://youtu.be/SmuZXXP_hMY
> >
> >
> > Nice Andy! I have some sumitomo CBN inserts I purchased from ebay a while
> > back because they were really cheap but never used it because I'm always
> > lacking the tool holder...
> >
> > El lun, 21 mar 2022 a las 12:54, andy pugh ()
> > escribió:
> >
> > > On Mon, 21 Mar 2022 at 13:53, Leonardo Marsaglia <
> ldmarsag...@gmail.com>
> > > wrote:
> > > >
> > > > Sam, have you had to soften the final portion of the ballscrew to
> > machine
> > > > that thread? I've never done it and the ones I'm mounting in the
> router
> > > are
> > > > fixed (rotating nut).
> > >
> > > I have machined a number of ballscrews. Typically I peel of the outer
> > > hardened layer with CBN-tipped tools, but mainly because I have some.
> > > It can be done with normal carbide, though you might need more than
> > > one.
> > > Very high surface speed and very light cuts is the way to go.
> > >
> > > https://youtu.be/SmuZXXP_hMY
> > >
> > > --
> > > atp
> > > "A motorcycle is a bicycle with a pandemonium attachment and is
> > > designed for the especial use of mechanical geniuses, daredevils and
> > > lunatics."
> > > — George Fitch, Atlanta Constitution Newspaper, 1912
> > >
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
>
> --
> Addressee is the intended audience.
> If you are not the addressee then my consent is not given for you to read
> this email furthermore it is my wish you would close this without saving or
> reading, and cease and desist from saving or opening my private
> correspondence.
> Thank you for honoring my wish.
>
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Re: [Emc-users] custom | stock bearing nut

[Sam Sokolik]

look at that - they actually make a tap..

https://www.ebay.com/itm/255422311969?hash=item3b785b2e21:g:hmoAAOSwI4VdVsri

On Tue, Apr 5, 2022 at 11:57 AM Sam Sokolik  wrote:

> wow - I had a hard enough time finding  12mm x 1..  The local hardware
> store actually  had 'jam nuts' in that pitch.  I can't say I have ever run
> across .8  - are you sure? ;)
>
> sam
>
>
>
> On Tue, Apr 5, 2022 at 11:47 AM dave engvall  wrote:
>
>> Hi all,
>> I have a pair of ball screws: THK KX 71227 A
>> These are new but older and as far as I can tell not on the THK site.
>> They are threaded on one end to retain a bearing.
>> M15 x 0.8 or close. Does anyone know of a bearing nut that would fit or
>> am I stuck with
>> having a pair custom made?
>> I've spent a fair amount of time searching the web but maybe (probably)
>> someone else's  google foo is better than mine.
>> As always TIA
>>
>> Dave
>>
>>
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Re: [Emc-users] custom | stock bearing nut

[Sam Sokolik]

wow - I had a hard enough time finding  12mm x 1..  The local hardware
store actually  had 'jam nuts' in that pitch.  I can't say I have ever run
across .8  - are you sure? ;)

sam



On Tue, Apr 5, 2022 at 11:47 AM dave engvall  wrote:

> Hi all,
> I have a pair of ball screws: THK KX 71227 A
> These are new but older and as far as I can tell not on the THK site.
> They are threaded on one end to retain a bearing.
> M15 x 0.8 or close. Does anyone know of a bearing nut that would fit or
> am I stuck with
> having a pair custom made?
> I've spent a fair amount of time searching the web but maybe (probably)
> someone else's  google foo is better than mine.
> As always TIA
>
> Dave
>
>
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Re: [Emc-users] Homebuilt encoder

[Sam Sokolik]

I don't know - maybe over-thinking this a bit?  I have 2 machines using
gear tooth sensors.  Both rigid tap perfectly without issues.

http://electronicsam.com/images/matsuura/sensors1.jpg

On Thu, Mar 31, 2022 at 8:32 AM gene heskett  wrote:

> On Thursday, 31 March 2022 07:57:53 EDT andrew beck wrote:
> > For those interested I decided I really should start to use the forum
> > so people can search later for stuff hopefully I help someone.
> >
> > I have started on the gear sensor style encoder.
> >
> >
> > Hope it works.  Let me know your thoughts
> >
> > https://forum.linuxcnc.org/show-your-stuff/45498-linuxcnc-machine-shop->
> fun-thread
> >
> > Regards
> >
> > Andrew
> >
> > On Sun, 27 Mar 2022, 22:21 Andy Pugh,  wrote:
> > > > On 27 Mar 2022, at 08:09, andrew beck 
> > > > wrote:
> > > >
> > > > And is bigger dia better for higher resolution?
> > >
> > > Probably not, as it will perhaps have more scope to oscillate at
> > > 10,000 rpm.
> > >
> > > Don’t neglect the purely mechanical design of this fast-spinning
> > > part.
> > >
> > > Have you considered optical sensors rather than inductive?
> > >
> > > What will be counting the pulses?
> > >
> > > LinuxCNC can lathe-thread with one sensor.
> > > But rigid-tapping is different as it needs to accurately detect the
> > > reversal point. So you need three channels for index and full
> > > quadrature.
>
> And this is the problem with useing an ats-667 gear sensor. It switches
> on the approach, so the switch point, in only watching one edge, will
> have a different switch point depending on the direction. Some day, I've
> got the fix that.  Needs a circuit from the quad detectors direction
> output, to dynamically switch the polarity of its pulse depending on
> which direction the quad detector says its turning. Thats active
> circuitry and needs to be MUCH faster than a hal thread. Probably in pure
> hardware. Ideally for that, an edge detector watching and firing on both
> edges with the first one "cocking" a trigger, and the second pulse then
> gated to the index circuit. That way the pulse seen as an index would be
> the one generated as the center of the trigger tooth is passing over the
> center of the ats-667. The ats-667 stays in that state until the next
> trigger is aproaching. So turning in one direction, its on 96% of the
> time, but in the other direction its off 96% of the time.
>
> > > Work out what error you can accept in the reversal point detection
> > > (as a fraction of thread pitch) and you can get a feel for how many
> > > slots you need.
> > >
> > >
> > >
> > >
> > > ___
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> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > ___
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>
> Cheers, Gene Heskett.
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author, 1940)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
>
>
>
>
>
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Re: [Emc-users] Homebuilt encoder

[Sam Sokolik]

I am running a 48ish tooth gear with gear tooth sensors - it counts up to
10k with mesa.

http://electronicsam.com/images/greenmachine/20190401_150213.jpg
http://electronicsam.com/images/greenmachine/20190403_175734.jpg

sam



On Sun, Mar 27, 2022 at 4:27 PM dave engvall  wrote:

> At high rpm a resolver may make more sense ... and more $$. Depends. ??
>
> Dave
>
> On 3/27/22 2:03 PM, ken.stra...@gmail.com wrote:
> > Gene, do you have a part number for your high RPM Omron encoder? Maybe I
> can
> > snag one...
> >
> > -Original Message-
> > From: gene heskett 
> > Sent: March 27, 2022 4:49 PM
> > To: Enhanced Machine Controller (EMC) 
> > Subject: Re: [Emc-users] Homebuilt encoder
> >
> > On Sunday, 27 March 2022 15:45:48 EDT ken.stra...@gmail.com wrote:
> >> If you want spindle positioning (for more accurate probing of
> >> alignment for tool changes for examples) you'll need the encoder to
> >> follow the position at all speeds. Are there high RPM capable absolute
> >> encoders at a reasonable price?
> > The one I have on the rear end of that 1hp motor, an Omron 1000 ppr,
> cost me
> > $21 on fleabay 6 years ago. Its a differential model I'm converting to
> ttl
> > in a pair of rs485 to ttl interfaces that cost about $2 each, driving a
> 5i25
> > card. NO optics in that path. Absolute it is not, but if the encoder
> tracks,
> > who cares.
> >
> > Cheers, Gene Heskett.
> > --
> > "There are four boxes to be used in defense of liberty:
> >   soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author, 1940)
> > If we desire respect for the law, we must first make the law respectable.
> >   - Louis D. Brandeis
> >
> >
> >
> >
> >
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
> >
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>
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Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

we wrapped the ball screw and nut with plastic - dad went outside and
ground it with an angle grinder.  Then finished it up on the belt sander.
He took a couple breaks mainly so it didn't get too hot.  (it barely got
hot to the touch.)

We had thought about milling out the slot - but didn't want to risk having
it change the shape of the saddle.

sam

On Mon, Mar 21, 2022 at 11:03 AM andy pugh  wrote:

> On Mon, 21 Mar 2022 at 12:23, Sam Sokolik  wrote:
> >
> > Dad ground the ball screw nut.
>
> Inventive :-)
>
> I have used the RSH style a couple of times now.
>
> http://www.gtenballscrew.com.tw/Page/Product/ProductDetail.aspx?ProductCategoryNo=123=15
> Odd that the 16mm is smaller than the 12mm, but that might be
> explained by the 16mm having an external ball-return tube that isn't
> shown in the diagram.
>
> There is a pic of it here:
> https://bodgesoc.blogspot.com/2016/08/holbrook08.html
>
>
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
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> — George Fitch, Atlanta Constitution Newspaper, 1912
>
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Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

The nut, though felt, pretty hard.

On Mon, Mar 21, 2022 at 9:22 AM Sam Sokolik  wrote:

> That was a generic ball screw from ebay with the ends machine.   My
> understanding is the shaft is only surface hardened and is pretty soft
> underneath.  (have not tried filing various areas of the ball screw though)
>
> On Mon, Mar 21, 2022 at 8:53 AM Leonardo Marsaglia 
> wrote:
>
>> Sam, have you had to soften the final portion of the ballscrew to machine
>> that thread? I've never done it and the ones I'm mounting in the router
>> are
>> fixed (rotating nut).
>>
>> El lun, 21 mar 2022 a las 10:15, Sam Sokolik ()
>> escribió:
>>
>> > Sorry -  meant to post
>> > https://photos.app.goo.gl/yBNmiD9rRkPCoNgJ8
>> >
>> > On Mon, Mar 21, 2022 at 7:19 AM Sam Sokolik  wrote:
>> >
>> > > Dad ground the ball screw nut..   everything fits nicely under the
>> cross
>> > > slide it seems..  Found a bit of aluminium to make a simple bearing
>> block
>> > > for 2 angular contact bearings..
>> > >
>> > > https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA
>> > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7
>> > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7
>> > >
>> > > On Sun, Mar 20, 2022 at 5:56 PM gene heskett 
>> > wrote:
>> > >
>> > >> On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote:
>> > >> > Gene,
>> > >> > The replacement ball bearing fan isn't on the bed fan duct but
>> cools
>> > >> > the top part of the hot end where the filament enters the PTFE
>> lined
>> > >> > feed pipe.
>> > >> >
>> > >> Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle
>> > >> temps, the stuff eventually goes away or leaks badly. Feed it PETG at
>> > >> 240C, goes away in 2 days. All metal hot ends are better, titainium
>> heat
>> > >> breaks even better. Better yet I suspect is the copperhead copper/
>> > >> titainium combo but like the PCD nozzle, bring real money.
>> > >>
>> > >> > Problem solved which the new blower duct, now not aimed at the hot
>> > end,
>> > >> > did not completely fix.
>> > >>
>> > >> should be aimed at or just below the nozzle tip.
>> > >> >
>> > >> > Wrapped hot end block in insulating paper and Krylon tape.   Now
>> nice
>> > >> > flat curves and no drop in temperature even with 98% bed fan speed.
>> > >> >
>> > >> > John
>> > >> >
>> > >> > > -Original Message-
>> > >> > > From: gene heskett [mailto:ghesk...@shentel.net]
>> > >> > > Sent: March-20-22 2:50 PM
>> > >> > > To: Enhanced Machine Controller (EMC)
>> > >> > > Subject: Re: [Emc-users] Because I can't seem to finish
>> anything...
>> > >> > > Nebel lathe conversion.>
>> > >> > > On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote:
>> > >> > > > Story of my life.  Fan failed on 3D printer.  Repaired feed
>> tube
>> > >> > > > and
>> > >> > > > replaced with ball bearing fan I had from power supply
>> > >> > > > manufacturing
>> > >> > > > inventory.   Almost 1 week later still not working quite the
>> way
>> > it
>> > >> > > > was and the way I want. John
>> > >> > >
>> > >> > > ball bearing fans start easier, leads to over cooling the early
>> > >> > > layers. Change the min speed so its stopped for the 1st layer
>> like
>> > >> > > it used to be at 25% power. Sleeve bearing fans often don't
>> start at
>> > >> > > all till the mid 30% range.
>> > >> > >
>> > >> > > Try zero for the first layer or even as high as the third layer
>> > >> > > before
>> > >> > > the fan actually starts. I have a ball bearing fan on my BIQU BX
>> and
>> > >> > > it runs plenty fast enough at 30% of max in cura for PETG which
>> > >> > > needs far less cooling than PLA. I don't mess with PLA at all,
>> too
>> > >> > > brittle.
>> > >> > >
>> > >> > > 

Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.

[Sam Sokolik]

That was a generic ball screw from ebay with the ends machine.   My
understanding is the shaft is only surface hardened and is pretty soft
underneath.  (have not tried filing various areas of the ball screw though)

On Mon, Mar 21, 2022 at 8:53 AM Leonardo Marsaglia 
wrote:

> Sam, have you had to soften the final portion of the ballscrew to machine
> that thread? I've never done it and the ones I'm mounting in the router are
> fixed (rotating nut).
>
> El lun, 21 mar 2022 a las 10:15, Sam Sokolik ()
> escribió:
>
> > Sorry -  meant to post
> > https://photos.app.goo.gl/yBNmiD9rRkPCoNgJ8
> >
> > On Mon, Mar 21, 2022 at 7:19 AM Sam Sokolik  wrote:
> >
> > > Dad ground the ball screw nut..   everything fits nicely under the
> cross
> > > slide it seems..  Found a bit of aluminium to make a simple bearing
> block
> > > for 2 angular contact bearings..
> > >
> > > https://photos.app.goo.gl/NcW1fxrBGBgXH1SPA
> > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7
> > > https://photos.app.goo.gl/jWwKR5Fvz9ae4bbR7
> > >
> > > On Sun, Mar 20, 2022 at 5:56 PM gene heskett 
> > wrote:
> > >
> > >> On Sunday, 20 March 2022 18:07:01 EDT John Dammeyer wrote:
> > >> > Gene,
> > >> > The replacement ball bearing fan isn't on the bed fan duct but cools
> > >> > the top part of the hot end where the filament enters the PTFE lined
> > >> > feed pipe.
> > >> >
> > >> Ah, PTFE lined hot end. Needs tubing replaced as even at 200c nozzle
> > >> temps, the stuff eventually goes away or leaks badly. Feed it PETG at
> > >> 240C, goes away in 2 days. All metal hot ends are better, titainium
> heat
> > >> breaks even better. Better yet I suspect is the copperhead copper/
> > >> titainium combo but like the PCD nozzle, bring real money.
> > >>
> > >> > Problem solved which the new blower duct, now not aimed at the hot
> > end,
> > >> > did not completely fix.
> > >>
> > >> should be aimed at or just below the nozzle tip.
> > >> >
> > >> > Wrapped hot end block in insulating paper and Krylon tape.   Now
> nice
> > >> > flat curves and no drop in temperature even with 98% bed fan speed.
> > >> >
> > >> > John
> > >> >
> > >> > > -Original Message-
> > >> > > From: gene heskett [mailto:ghesk...@shentel.net]
> > >> > > Sent: March-20-22 2:50 PM
> > >> > > To: Enhanced Machine Controller (EMC)
> > >> > > Subject: Re: [Emc-users] Because I can't seem to finish
> anything...
> > >> > > Nebel lathe conversion.>
> > >> > > On Sunday, 20 March 2022 16:46:17 EDT John Dammeyer wrote:
> > >> > > > Story of my life.  Fan failed on 3D printer.  Repaired feed tube
> > >> > > > and
> > >> > > > replaced with ball bearing fan I had from power supply
> > >> > > > manufacturing
> > >> > > > inventory.   Almost 1 week later still not working quite the way
> > it
> > >> > > > was and the way I want. John
> > >> > >
> > >> > > ball bearing fans start easier, leads to over cooling the early
> > >> > > layers. Change the min speed so its stopped for the 1st layer like
> > >> > > it used to be at 25% power. Sleeve bearing fans often don't start
> at
> > >> > > all till the mid 30% range.
> > >> > >
> > >> > > Try zero for the first layer or even as high as the third layer
> > >> > > before
> > >> > > the fan actually starts. I have a ball bearing fan on my BIQU BX
> and
> > >> > > it runs plenty fast enough at 30% of max in cura for PETG which
> > >> > > needs far less cooling than PLA. I don't mess with PLA at all, too
> > >> > > brittle.
> > >> > >
> > >> > > I've also put a diamonback .4mm PCD nozzle in mine so I can use
> the
> > >> > > carbon fiber filled PETG but haven't yet seen the need for its
> > >> > > improved strength. I'm running the nozzle at 252C and the bed at
> 90C
> > >> > > and my printed air manifold is air tight. Bed adhesion is only a
> > >> > > problem getting stuff loose. Its almost too good. If the nozzle is
> > >> > > slobbering, check how tight it is, then reduc