Re: [Emc-users] Any Interest or Ideas for a Linuxcnc Fest 2016 ?

[Jon Elson]

Update, I booked a room at the Wichita Inn Airport, for $59 
(plus taxes) through Travelocity.  They have more rooms at 
that rate. Free breakfast, and the specifically mention 
WIRED Ethernet (which usually works way better than most 
motel wi-fi.)

I'm planning on driving down on Monday the 17th, and leaving 
Sunday.
See you all there!

Jon

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Re: [Emc-users] Getting current RPM setting?

[Sebastian Kuzminsky]

On 10/05/2016 08:33 AM, andy pugh wrote:
> On 5 October 2016 at 15:17, Sebastian Kuzminsky  wrote:
>> But the information *is* available in the Interpreter (in Task), and
>> shared from there to all other components that want it, via the Status
>> structure.  The bests place to export it from is probably halui.  So I
>> change my suggestion from "add a pin to Motion", to "add a pin to halui"
>
> Would it be available to a userspace Python component via the
> linuxcnc.stat structure?
> http://linuxcnc.org/docs/2.7/html/config/python-interface.html
> What does that version of spindle_speed show?

In python it's in linuxcnc.stat.settings[2].  Maybe not the most 
intuitive name for it...


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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[Gene Heskett]

On Wednesday 05 October 2016 09:41:13 Sven Wesley wrote:

> 2016-10-05 7:11 GMT+02:00 Gene Heskett :
> > On Tuesday 04 October 2016 23:09:47 Jack Coats wrote:
> > > Hope you have had a great anniversary of full revolutions around
> > > Sol! .. .In short, Happy Birthday Gene!
> >
> > Not too bad Jack, once all the other factors are stirred in, I think
> > it was pretty good. The biggest thing of course is to be here to
> > brag about it. :)
> >
> > Thank you.
>
> Gene, you've been on this list as long as I can remember. And I joined
> like 12 years ago. :)
> Age is just a number, keep on defying it!
>
> /Sven

Chuckle, at least I am still getting away with thumbing my nose at it, 
most of the time...

Thanks Sven

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)
Genes Web page 

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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[Gene Heskett]

On Wednesday 05 October 2016 11:13:45 John Thornton wrote:

> Thanks Gene,
>
> Yes, I always say I don't have luck good or bad because I make my own
> luck.
>
> JT

Chuckle, been playing that part for around 70 years. :)  I guess thats 
why I don't play the lottery, until its north of 300 million, I might 
buy one ticket. But my buying a $5 ticket just makes sure some guy 
already driving a Maybach, will win it at the next drawing.

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)
Genes Web page 

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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[Gene Heskett]

On Wednesday 05 October 2016 09:10:35 W. Martinjak wrote:

> http://de.urbandictionary.com/define.php?term=YMMD
>
> :)
>

Thanks.

This Urban Dictionary sounds like something I should follow. But Urban 
doesn't fit me very well, considering my first year in school, '39 IIRC 
in Madison County Iowa, with all those bridges they made a movie about. 
I rode an old plow horse mare halfway to school, but had to walk the 
other mile as in bad weather I had to stop and put the old mare into a 
barn to give her some weather protection. We also paid the owner of that 
barn a small consideration for a thawed water pan and the stalls feed 
bunk getting a bucket of grain at noonish.

Thats not exactly Urban, and explains my wish to someday own a good set 
of buildings in the center of 40 acres I owned.

You can take the boy out of the country, but its much harder to take the 
country out of the boy. ;-)

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)
Genes Web page 

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Re: [Emc-users] Getting current RPM setting?

[dannym]

How hard would it be to get a number for how many lines are in the g-code?

I saw the HAL has a "current line number".  I need the total, presumably 
determined when it loaded.

Reason being, my prior post- can give an ETA for 3D carving by (time/current 
line number)*(total lines in G-code -  current line number)

e.g. 10 min in, current count is 50k lines, total file is 200k lines, ETA is 30 
min.

Danny

 John Thornton  wrote: 
> I see where it is wonky... let me see if I can finger out what caused 
> that...
> 
> JT
> 
> On 10/5/2016 9:33 AM, andy pugh wrote:
> > On 5 October 2016 at 15:17, Sebastian Kuzminsky  wrote:
> >> But the information *is* available in the Interpreter (in Task), and
> >> shared from there to all other components that want it, via the Status
> >> structure.  The bests place to export it from is probably halui.  So I
> >> change my suggestion from "add a pin to Motion", to "add a pin to halui"
> > Would it be available to a userspace Python component via the
> > linuxcnc.stat structure?
> > http://linuxcnc.org/docs/2.7/html/config/python-interface.html
> > What does that version of spindle_speed show?
> >
> > (I also note that the formatting of that page has gone funny)
> >
> 
> 
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Re: [Emc-users] Getting current RPM setting?

[John Thornton]

I see where it is wonky... let me see if I can finger out what caused 
that...

JT

On 10/5/2016 9:33 AM, andy pugh wrote:
> On 5 October 2016 at 15:17, Sebastian Kuzminsky  wrote:
>> But the information *is* available in the Interpreter (in Task), and
>> shared from there to all other components that want it, via the Status
>> structure.  The bests place to export it from is probably halui.  So I
>> change my suggestion from "add a pin to Motion", to "add a pin to halui"
> Would it be available to a userspace Python component via the
> linuxcnc.stat structure?
> http://linuxcnc.org/docs/2.7/html/config/python-interface.html
> What does that version of spindle_speed show?
>
> (I also note that the formatting of that page has gone funny)
>


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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[John Thornton]

Thanks Gene,

Yes, I always say I don't have luck good or bad because I make my own luck.

JT

On 10/4/2016 8:51 AM, Gene Heskett wrote:
> On Tuesday 04 October 2016 09:17:47 John Thornton wrote:
>
>> Happy birthday Gene and your an inspiration for me!
>>
>> JT
> Thank you John.
>
> You I think are in the category of self-made man, which the huge majority
> of this mailing list seem to be.  And I admire all of you. We are buyers
> only in the sense that we buy the tools to get stuff made because we are
> do-ers that make the stuff we can sell to a buyer. Our hands have never
> refused to get dirty because they don't fit the tools.  I don't often
> buy the "thing", I buy the parts, or make them, to make the "thing".
> And we, all of us, should be very proud that we are of a temperament to
> grab the tools and get it done.
>
>> On 10/4/2016 7:48 AM, Gene Heskett wrote:
>>> Greetings all;
>>>
>>> I re-thought how to do a G76, both in terms of maybe hitting the
>>> correct thread od, and in how to minimize the backaway for doing
>>> internal threads to the absolute minimum. 2 attachments, one the
>>> code that made the snapshot, and the snapshot showing how it works,
>>> even for a gross adjustment.  The whole idea was to maintain the
>>> effective imaginary compound angle, hopefully resulting it a cleaner
>>> thread, as a second or third run was done to get the exact size and
>>> fit. I hope you find it usable.
>>>
>>> Cheers, Gene Heskett
>>>
>>>
>>> 
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>>> most engaging tech sites, SlashDot.org! http://sdm.link/slashdot
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>>>
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>> https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett


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Re: [Emc-users] Getting current RPM setting?

[andy pugh]

On 5 October 2016 at 15:17, Sebastian Kuzminsky  wrote:
> But the information *is* available in the Interpreter (in Task), and
> shared from there to all other components that want it, via the Status
> structure.  The bests place to export it from is probably halui.  So I
> change my suggestion from "add a pin to Motion", to "add a pin to halui"

Would it be available to a userspace Python component via the
linuxcnc.stat structure?
http://linuxcnc.org/docs/2.7/html/config/python-interface.html
What does that version of spindle_speed show?

(I also note that the formatting of that page has gone funny)

-- 
atp
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designed for the especial use of mechanical geniuses, daredevils and
lunatics."
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Re: [Emc-users] Getting current RPM setting?

[Sebastian Kuzminsky]

On 10/02/2016 10:40 AM, Danny Miller wrote:
>
> On 10/2/2016 11:35 AM, Sebastian Kuzminsky wrote:
>>
>> It would probably be easy to add a motion pin with that information, i'd
>> be happy to guide you through that if you like.
>>
>>
> Sounds like a lot of complexity, but it's of great value to know how
> that works.  Shoot!

I should know better by now than to say "It would probably be easy"...

I looked into this a bit and it turns out to be hard instead.  The 
commanded S-word doesn't get sent from Task to Motion until the 
spindle-on command (M3/M4) runs.  So exporting it to HAL from Motion 
won't work without huge plumbing changes.

But the information *is* available in the Interpreter (in Task), and 
shared from there to all other components that want it, via the Status 
structure.  The bests place to export it from is probably halui.  So I 
change my suggestion from "add a pin to Motion", to "add a pin to halui".


In src/emc/usr_intf, look at halui.cc.  In emcTaskNmlGet() it connects 
to the Status channel, and ends up with a pointer named emcStatus, that 
points to the current Status structure.

The Status structure is defined in a bit of a complicated way, but after 
peeling off some of the layers you end up in 
src/emc/nml_intf/emc_nml.hh, in the structure named EMC_TASK_STAT.  It 
has a member called "activeSettings", which contains (among other 
things) the currently programmed S-word, no matter what your M3/M4/M5 
setting is.

The S-word gets put into the Status activeSettings array in 
src/emc/rs274ngc/rs274ngc_pre.cc, by the Interp::active_settings() 
function.  This function gets called by Task every time through its 
loop, Task passes it a pointer to the Status active_settings array as 
the "settings" argument.  active_settings() copies the information from 
one of Interp's internal variables, called "_setup".  _setup gets the 
speed information in src/emc/rs274ngc/interp_write.cc, in the 
write_settings() function.  There you can see that the speed info is at 
index 2 in the array.

So!

Look in halui.cc for where (for example) halui.spindle.is-on is created, 
and use that as a template to create a new (float) pin named (perhaps) 
halui.spindle.selected-speed or .programmed-speed or something.   Add a 
little chunk of code to halui's modify_hal_pins() to copy the Status 
active_settings[2] value to that pin, and you should be done.

Feel free to ask questions if any of that wasn't clear.

Some introductory documentation about hacking on linuxcnc is here:

http://linuxcnc.org/docs/devel/html/code/contributing-to-linuxcnc.html
http://linuxcnc.org/docs/devel/html/code/building-linuxcnc.html


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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[Sven Wesley]

2016-10-05 7:11 GMT+02:00 Gene Heskett :

> On Tuesday 04 October 2016 23:09:47 Jack Coats wrote:
>
> > Hope you have had a great anniversary of full revolutions around Sol!
> > .. .In short, Happy Birthday Gene!
> >
> Not too bad Jack, once all the other factors are stirred in, I think it
> was pretty good. The biggest thing of course is to be here to brag about
> it. :)
>
> Thank you.
>

Gene, you've been on this list as long as I can remember. And I joined like
12 years ago. :)
Age is just a number, keep on defying it!

/Sven
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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[W. Martinjak]

http://de.urbandictionary.com/define.php?term=YMMD

:)

On 2016-10-05 15:01, Gene Heskett wrote:
> Expand please.

-- 
"In der Wissenschaft siegt nie eine neue Theorie,
nur ihre Gegner sterben nach und nach"

Max Planck


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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[Gene Heskett]

On Wednesday 05 October 2016 08:47:13 W. Martinjak wrote:

> On 2016-10-04 23:29, Gene Heskett wrote:
> > 99.5% of the animated bodies
>
> YMMD! :D

Forgive me W. Martinjak, but that is a new variation on a theme to me.  
Expand please.

Thank you.

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)
Genes Web page 

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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[Gene Heskett]

On Wednesday 05 October 2016 07:44:08 linden wrote:

> Happy birthday Gene,
>
>  Thank you for generously sharing your wealth of diverse knowledge
> and experience with the likes of us. If it were not for a hole
> generation of men and women like you that took the time and had the
> patience to share there experiences and show this little hippy kid how
> the world worked who knows where I would have ended up.
>
> I hope one day I am as active and as willing to help others as
> you have been and facing every situation with a twist of humor.
>
> As my grandmother that made it to 99 was fond of saying "growing up is
> optional growing old is inevitable"
>
> Take care and looking forward to here more words of wisdom and the odd
> random though that rattles around in that head of yours for years to
> come.
>
> Linden

Thank you Linden.  Your Grandmother was an astute observer of life.  And 
I do hope, as we all do, to get to the age where we don't think of 
something in terms of its commercial advantage just to ourselves.  I 
think the word is altruistic.  If I can benefit, so can all of us.

That discovery of being able to cut a tapered thread with the std g76 was 
one such.  The angles are less than pipe thread in taper, but extremely 
usefull when coupling a knob/shaft to a ball screw, and the grip seems 
extremely capable of anchoring that screw forever in day to day work.  
Until such time as I must replace the screw, its a bit small for the 
job, but I had it on the shelf. In retrospect, now that I understand it 
better, I could have invoked it a second time for the straight threaded 
portion by offsetting the starting point an exact multiple of the pitch. 
But I only had to make one, and what I did, had some interference at the 
transition point, but worked anyway.  What surprised me was that the G76 
doc rewrite just done, still contains the statement that E cannot be 
more than half the thread length cut when, if using L2, E can be as 
large as the thread length minus one pitch.  That is not an error, and 
its a great way to do a low angle taper for a compression fitting.  As 
shown by the snapshots I posted.

> On 10/04/2016 10:11 PM, Gene Heskett wrote:
> > On Tuesday 04 October 2016 23:09:47 Jack Coats wrote:
> >> Hope you have had a great anniversary of full revolutions around
> >> Sol! .. .In short, Happy Birthday Gene!
> >
> > Not too bad Jack, once all the other factors are stirred in, I think
> > it was pretty good. The biggest thing of course is to be here to
> > brag about it. :)
> >
> > Thank you.
> >
> >> ---
> >>---  Check out the vibrant tech community on one of the
> >> world's most engaging tech sites, SlashDot.org!
> >> http://sdm.link/slashdot
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> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > Cheers, Gene Heskett
>
> --
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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)
Genes Web page 

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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[W. Martinjak]

On 2016-10-04 23:29, Gene Heskett wrote:
> 99.5% of the animated bodies

YMMD! :D

-- 
"In der Wissenschaft siegt nie eine neue Theorie,
nur ihre Gegner sterben nach und nach"

Max Planck


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Re: [Emc-users] Happy 82nd to me, and the latest version of my G76 tweaker for you

[linden]

Happy birthday Gene,

 Thank you for generously sharing your wealth of diverse knowledge 
and experience with the likes of us. If it were not for a hole 
generation of men and women like you that took the time and had the 
patience to share there experiences and show this little hippy kid how 
the world worked who knows where I would have ended up.

I hope one day I am as active and as willing to help others as 
you have been and facing every situation with a twist of humor.

As my grandmother that made it to 99 was fond of saying "growing up is 
optional growing old is inevitable"

Take care and looking forward to here more words of wisdom and the odd 
random though that rattles around in that head of yours for years to come.

Linden


On 10/04/2016 10:11 PM, Gene Heskett wrote:
> On Tuesday 04 October 2016 23:09:47 Jack Coats wrote:
>
>> Hope you have had a great anniversary of full revolutions around Sol!
>> .. .In short, Happy Birthday Gene!
>>
> Not too bad Jack, once all the other factors are stirred in, I think it
> was pretty good. The biggest thing of course is to be here to brag about
> it. :)
>
> Thank you.
>
>
>> --
>>  Check out the vibrant tech community on one of the world's
>> most engaging tech sites, SlashDot.org! http://sdm.link/slashdot
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett


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Re: [Emc-users] Can speed/accel be changed without rebooting?

[Gene Heskett]

On Wednesday 05 October 2016 05:08:52 andy pugh wrote:

> On 5 October 2016 at 07:20, Danny Miller  wrote:
> > I was going through the HAL and noticed the per-axis ini parameters
> > are there.
> >
> > Can they be changed without rebooting?
>
> I assume that they must be, otherwise there is no point in the HAL
> pins existing.
> (And they are input pins, so exist for setting the values).

Which I have done useing the hal show config pulldown, but I'd also say 
that is about as clumsy a way as can be because you have to keep 
reselecting that parameter in order to see the new value.

I could see something carved up in gladevcp or pyvcp to couple some .hal 
scripts to effect that, which it might be possible to access in the 
gcode by a halui function calling a couple of remapped m100+ functions.

Mind you I have not done it because the foray's I have played with are 
those functions in the "align.zip" software kit. It could indeed run the 
machine to point the camera at the place the tool was, but without any 
command to revert it being visible, it turns around and runs it back to 
the starting position with no pause.  And when I asked about it, no 
response.  I assume because no one else can see the potential utility in 
being able to just clamp down the work in any old orientation, and use 
it to adjust the coordinate map to effectively square it up as if being 
held in a fixed jig. Very handy for carving a double-sided pcb in 
perfect registration for instance. So those camon/camoff buttons along 
with the align buttons are still there in my gui, but useless.

Perhaps what Danny wants to do is similar enough that a solution might be 
found for both of us? I don't know. I burned up at least 2 weeks, making 
a removable camera mount that could be used to find a feature on the 
workpiece that would consistently be removed and remounted, still 
centered on that feature.  So the camera problem is solved, but the 
software is not.

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)
Genes Web page 

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Re: [Emc-users] Can speed/accel be changed without rebooting?

[andy pugh]

On 5 October 2016 at 07:20, Danny Miller  wrote:
> I was going through the HAL and noticed the per-axis ini parameters are
> there.
>
> Can they be changed without rebooting?

I assume that they must be, otherwise there is no point in the HAL
pins existing.
(And they are input pins, so exist for setting the values).

-- 
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
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[Emc-users] Can speed/accel be changed without rebooting?

[Danny Miller]

I was going through the HAL and noticed the per-axis ini parameters are 
there.

Can they be changed without rebooting?  The machine will be at a stop 
for this.

Reason being, I use the standard cutting profile but I also have a 3D 
carving profile which increases the acceleration much higher.  To stay 
within the motor's performance curve, the max speed of the axes is 
limited for 3D carving.  And the carving profile's acceleration shakes 
the table in a way you just don't need for regular cuts.

So I was thinking, can I just make a PYVCP button that changes to the 
alternate profile, faster accel but slower linear, and back?

I've done 3D carving and then a toolchange to switch to an endmill for 
cutout.  No real biggie, but I couldn't switch to the 2D cut profile 
without rebooting, so I didn't reboot.  It'd be an interesting feature 
if it was just a button.

Danny







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