Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

First attempt...

http://electronicsam.com/images/greenmachine/IMG_20201018_132348.jpg

On Wed, Oct 14, 2020 at 11:11 AM Sam Sokolik  wrote:

> So - I kinda cheated.  I set up the comp so that I could run a gcode
> program and scan the 'radius' of the shape into an array..  SO it looks like
>
> -move to the center of the shape - comp captures center.
> -move to the profile of the shape - set the comp to scan mode
> -run the gcode and the comp stores the scanned shape into an array.
>
> Have not actually cut anything...  yet
>
> below - right is the gcode shape - left is the spindle synced motion with
> and without tool offset.  (not that you would be boring that shape - but it
> is easier to visualize on the mill.
>
>
> http://electronicsam.com/images/greenmachine/Screenshot_2020-10-11_19-42-05.png
>
> This one was just for fun-zies...
>
>
> http://electronicsam.com/images/greenmachine/Screenshot_2020-10-12_18-24-22.png
>
>
>
>
> On Thu, Sep 17, 2020 at 11:24 AM Sam Sokolik  wrote:
>
>> With a properly sharpened tool - and a bit more hp - you could plunge a
>> cutter to make the shape..  (like a circular shaper..)
>>
>> I did it on the emco but the quality wasn't as nice..  (partly the
>> rigidity and partly the cutter grind)  so - that is way faster...
>>
>> http://electronicsam.com/images/greenmachine/IMG_20200915_174431.jpg
>>
>> http://electronicsam.com/images/greenmachine/IMG_20200915_182303.jpg
>>
>> sam
>>
>>
>>
>> On Thu, Sep 17, 2020 at 11:19 AM John Dammeyer 
>> wrote:
>>
>>> As always both videos are very impressive.  Although I think Andy Pugh
>>> would just move his lathe chuck onto his Harmonic Drive 4th axis and make
>>> the square in far less than 7 minutes.
>>>
>>> Maybe a competition?  On your marks. Get set. Go!
>>>
>>> Very cool Sam!  One day maybe I'll be able to do it too.
>>> Thanks for posting those.
>>> John Dammeyer
>>>
>>>
>>> > -Original Message-
>>> > From: Sam Sokolik [mailto:samco...@gmail.com]
>>> > Sent: September-17-20 6:56 AM
>>> > To: Enhanced Machine Controller (EMC)
>>> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
>>> >
>>> > Thought I would test a square - adding a radius to the corner certainly
>>> > helped the path following.  (I think this was .030")
>>> >
>>> > https://youtu.be/Q9zhi8Mc1fE
>>> >
>>> >
>>> > On Mon, May 4, 2020 at 3:03 AM Gene Heskett 
>>> wrote:
>>> >
>>> > > On Sunday 03 May 2020 14:34:24 Sam Sokolik wrote:
>>> > >
>>> > > > https://youtu.be/PtD9w6lp8n8
>>> > >
>>> > > Sam, dammit, you are having too much fun while the rest of us are
>>> more or
>>> > > less locked up.
>>> > >
>>> > > But it shows others what LinuxCNC CAN do, so I love it. That said,
>>> in low
>>> > > gear, my spincle encoder scale is a bit over 14,000, so I ought to be
>>> > > able to do some of that too. If I can con it into going that slow.
>>> Since
>>> > > I have 2x the nameplate FLA to hit that motor with, I don't see why
>>> not.
>>> > > 1st step is 100 rpm in high gear, and its still turning ar 15% on the
>>> > > slider, I'll bet it can do it in low gear. Gotta get me a boring head
>>> > > athough I see you aren't always useing one. Gotta put a range switch
>>> on
>>> > > the tach, its sorta difficult to see 10 rpm on a 3000 scale.  I
>>> wonder
>>> > > just how far I can push PGain at that sort of speed, its plumb stable
>>> > > and silent at 20 right now and just a bit shaky at 40. I have said
>>> for a
>>> > > long time that there isn't anything that LinuxCNC cannot do and
>>> things
>>> > > like this continue to prove it.
>>> > >
>>> > > I hope all those guys using Mach on youtube are dying of jealousy. My
>>> > > grin us hurting my ears. :)
>>> > > >
>>> > > > On Wed, Apr 29, 2020, 6:43 AM Stuart Stevenson 
>>> > > wrote:
>>> > > > > Sam,
>>> > > > >   I heard you say your circle is a polygon of a thousand sides.
>>> > > > >
>>> > > > > In APT4 a circle of 2500 inches radius is calculated as a
>>> straight
>>> > >

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

So - I kinda cheated.  I set up the comp so that I could run a gcode
program and scan the 'radius' of the shape into an array..  SO it looks like

-move to the center of the shape - comp captures center.
-move to the profile of the shape - set the comp to scan mode
-run the gcode and the comp stores the scanned shape into an array.

Have not actually cut anything...  yet

below - right is the gcode shape - left is the spindle synced motion with
and without tool offset.  (not that you would be boring that shape - but it
is easier to visualize on the mill.

http://electronicsam.com/images/greenmachine/Screenshot_2020-10-11_19-42-05.png

This one was just for fun-zies...

http://electronicsam.com/images/greenmachine/Screenshot_2020-10-12_18-24-22.png




On Thu, Sep 17, 2020 at 11:24 AM Sam Sokolik  wrote:

> With a properly sharpened tool - and a bit more hp - you could plunge a
> cutter to make the shape..  (like a circular shaper..)
>
> I did it on the emco but the quality wasn't as nice..  (partly the
> rigidity and partly the cutter grind)  so - that is way faster...
>
> http://electronicsam.com/images/greenmachine/IMG_20200915_174431.jpg
>
> http://electronicsam.com/images/greenmachine/IMG_20200915_182303.jpg
>
> sam
>
>
>
> On Thu, Sep 17, 2020 at 11:19 AM John Dammeyer 
> wrote:
>
>> As always both videos are very impressive.  Although I think Andy Pugh
>> would just move his lathe chuck onto his Harmonic Drive 4th axis and make
>> the square in far less than 7 minutes.
>>
>> Maybe a competition?  On your marks. Get set. Go!
>>
>> Very cool Sam!  One day maybe I'll be able to do it too.
>> Thanks for posting those.
>> John Dammeyer
>>
>>
>> > -Original Message-
>> > From: Sam Sokolik [mailto:samco...@gmail.com]
>> > Sent: September-17-20 6:56 AM
>> > To: Enhanced Machine Controller (EMC)
>> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
>> >
>> > Thought I would test a square - adding a radius to the corner certainly
>> > helped the path following.  (I think this was .030")
>> >
>> > https://youtu.be/Q9zhi8Mc1fE
>> >
>> >
>> > On Mon, May 4, 2020 at 3:03 AM Gene Heskett 
>> wrote:
>> >
>> > > On Sunday 03 May 2020 14:34:24 Sam Sokolik wrote:
>> > >
>> > > > https://youtu.be/PtD9w6lp8n8
>> > >
>> > > Sam, dammit, you are having too much fun while the rest of us are
>> more or
>> > > less locked up.
>> > >
>> > > But it shows others what LinuxCNC CAN do, so I love it. That said, in
>> low
>> > > gear, my spincle encoder scale is a bit over 14,000, so I ought to be
>> > > able to do some of that too. If I can con it into going that slow.
>> Since
>> > > I have 2x the nameplate FLA to hit that motor with, I don't see why
>> not.
>> > > 1st step is 100 rpm in high gear, and its still turning ar 15% on the
>> > > slider, I'll bet it can do it in low gear. Gotta get me a boring head
>> > > athough I see you aren't always useing one. Gotta put a range switch
>> on
>> > > the tach, its sorta difficult to see 10 rpm on a 3000 scale.  I wonder
>> > > just how far I can push PGain at that sort of speed, its plumb stable
>> > > and silent at 20 right now and just a bit shaky at 40. I have said
>> for a
>> > > long time that there isn't anything that LinuxCNC cannot do and things
>> > > like this continue to prove it.
>> > >
>> > > I hope all those guys using Mach on youtube are dying of jealousy. My
>> > > grin us hurting my ears. :)
>> > > >
>> > > > On Wed, Apr 29, 2020, 6:43 AM Stuart Stevenson 
>> > > wrote:
>> > > > > Sam,
>> > > > >   I heard you say your circle is a polygon of a thousand sides.
>> > > > >
>> > > > > In APT4 a circle of 2500 inches radius is calculated as a straight
>> > > > > line. That allows an algorithm for part profiles to be described
>> as
>> > > > > all radiuses and the variable values determine the lines and
>> > > > > circles.
>> > > > > Just another possibly interesting random detail out of the wet
>> > > > > ram(thanks Gene) brought out by a random comment.
>> > > > >
>> > > > > Love your videos.
>> > > > >
>> > > > > Stuart
>> > >
>> > > All it takes is for somebody to ask 'what if?'

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

With a properly sharpened tool - and a bit more hp - you could plunge a
cutter to make the shape..  (like a circular shaper..)

I did it on the emco but the quality wasn't as nice..  (partly the
rigidity and partly the cutter grind)  so - that is way faster...

http://electronicsam.com/images/greenmachine/IMG_20200915_174431.jpg

http://electronicsam.com/images/greenmachine/IMG_20200915_182303.jpg

sam



On Thu, Sep 17, 2020 at 11:19 AM John Dammeyer 
wrote:

> As always both videos are very impressive.  Although I think Andy Pugh
> would just move his lathe chuck onto his Harmonic Drive 4th axis and make
> the square in far less than 7 minutes.
>
> Maybe a competition?  On your marks. Get set. Go!
>
> Very cool Sam!  One day maybe I'll be able to do it too.
> Thanks for posting those.
> John Dammeyer
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: September-17-20 6:56 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > Thought I would test a square - adding a radius to the corner certainly
> > helped the path following.  (I think this was .030")
> >
> > https://youtu.be/Q9zhi8Mc1fE
> >
> >
> > On Mon, May 4, 2020 at 3:03 AM Gene Heskett 
> wrote:
> >
> > > On Sunday 03 May 2020 14:34:24 Sam Sokolik wrote:
> > >
> > > > https://youtu.be/PtD9w6lp8n8
> > >
> > > Sam, dammit, you are having too much fun while the rest of us are more
> or
> > > less locked up.
> > >
> > > But it shows others what LinuxCNC CAN do, so I love it. That said, in
> low
> > > gear, my spincle encoder scale is a bit over 14,000, so I ought to be
> > > able to do some of that too. If I can con it into going that slow.
> Since
> > > I have 2x the nameplate FLA to hit that motor with, I don't see why
> not.
> > > 1st step is 100 rpm in high gear, and its still turning ar 15% on the
> > > slider, I'll bet it can do it in low gear. Gotta get me a boring head
> > > athough I see you aren't always useing one. Gotta put a range switch on
> > > the tach, its sorta difficult to see 10 rpm on a 3000 scale.  I wonder
> > > just how far I can push PGain at that sort of speed, its plumb stable
> > > and silent at 20 right now and just a bit shaky at 40. I have said for
> a
> > > long time that there isn't anything that LinuxCNC cannot do and things
> > > like this continue to prove it.
> > >
> > > I hope all those guys using Mach on youtube are dying of jealousy. My
> > > grin us hurting my ears. :)
> > > >
> > > > On Wed, Apr 29, 2020, 6:43 AM Stuart Stevenson 
> > > wrote:
> > > > > Sam,
> > > > >   I heard you say your circle is a polygon of a thousand sides.
> > > > >
> > > > > In APT4 a circle of 2500 inches radius is calculated as a straight
> > > > > line. That allows an algorithm for part profiles to be described as
> > > > > all radiuses and the variable values determine the lines and
> > > > > circles.
> > > > > Just another possibly interesting random detail out of the wet
> > > > > ram(thanks Gene) brought out by a random comment.
> > > > >
> > > > > Love your videos.
> > > > >
> > > > > Stuart
> > >
> > > All it takes is for somebody to ask 'what if?'.  I do it occasionally,
> so
> > > have you, but Sam seems like he does it a lot. And all of us benefit
> > > from this lists ability to answer the questions generated by our
> wildest
> > > dreams.
> > >
> > > Thank you all.
> > >
> > > > > On Tue, Apr 28, 2020 at 9:57 PM Sam Sokolik 
> > > wrote:
> > > > > > just to see if it would...
> > > > > >
> > > > > > https://youtu.be/a7CO9gohaXE
> > > > > >
> > > > > > On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik 
> > > wrote:
> > > > > > > the new encoder seems to work good :)
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > On Tue, Apr 21, 2020 at 9:53 PM Jon Elson
> > > > > > > 
> > > > > >
> > > > > > wrote:
> > > > > > >> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
> > > > > > >> > Just the way the path was generated...  Didn't try that
>

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

As always both videos are very impressive.  Although I think Andy Pugh would 
just move his lathe chuck onto his Harmonic Drive 4th axis and make the square 
in far less than 7 minutes.

Maybe a competition?  On your marks. Get set. Go!

Very cool Sam!  One day maybe I'll be able to do it too.
Thanks for posting those.
John Dammeyer


> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: September-17-20 6:56 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> Thought I would test a square - adding a radius to the corner certainly
> helped the path following.  (I think this was .030")
> 
> https://youtu.be/Q9zhi8Mc1fE
> 
> 
> On Mon, May 4, 2020 at 3:03 AM Gene Heskett  wrote:
> 
> > On Sunday 03 May 2020 14:34:24 Sam Sokolik wrote:
> >
> > > https://youtu.be/PtD9w6lp8n8
> >
> > Sam, dammit, you are having too much fun while the rest of us are more or
> > less locked up.
> >
> > But it shows others what LinuxCNC CAN do, so I love it. That said, in low
> > gear, my spincle encoder scale is a bit over 14,000, so I ought to be
> > able to do some of that too. If I can con it into going that slow. Since
> > I have 2x the nameplate FLA to hit that motor with, I don't see why not.
> > 1st step is 100 rpm in high gear, and its still turning ar 15% on the
> > slider, I'll bet it can do it in low gear. Gotta get me a boring head
> > athough I see you aren't always useing one. Gotta put a range switch on
> > the tach, its sorta difficult to see 10 rpm on a 3000 scale.  I wonder
> > just how far I can push PGain at that sort of speed, its plumb stable
> > and silent at 20 right now and just a bit shaky at 40. I have said for a
> > long time that there isn't anything that LinuxCNC cannot do and things
> > like this continue to prove it.
> >
> > I hope all those guys using Mach on youtube are dying of jealousy. My
> > grin us hurting my ears. :)
> > >
> > > On Wed, Apr 29, 2020, 6:43 AM Stuart Stevenson 
> > wrote:
> > > > Sam,
> > > >   I heard you say your circle is a polygon of a thousand sides.
> > > >
> > > > In APT4 a circle of 2500 inches radius is calculated as a straight
> > > > line. That allows an algorithm for part profiles to be described as
> > > > all radiuses and the variable values determine the lines and
> > > > circles.
> > > > Just another possibly interesting random detail out of the wet
> > > > ram(thanks Gene) brought out by a random comment.
> > > >
> > > > Love your videos.
> > > >
> > > > Stuart
> >
> > All it takes is for somebody to ask 'what if?'.  I do it occasionally, so
> > have you, but Sam seems like he does it a lot. And all of us benefit
> > from this lists ability to answer the questions generated by our wildest
> > dreams.
> >
> > Thank you all.
> >
> > > > On Tue, Apr 28, 2020 at 9:57 PM Sam Sokolik 
> > wrote:
> > > > > just to see if it would...
> > > > >
> > > > > https://youtu.be/a7CO9gohaXE
> > > > >
> > > > > On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik 
> > wrote:
> > > > > > the new encoder seems to work good :)
> > > > > >
> > > > > >
> > > > > >
> > > > > > On Tue, Apr 21, 2020 at 9:53 PM Jon Elson
> > > > > > 
> > > > >
> > > > > wrote:
> > > > > >> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
> > > > > >> > Just the way the path was generated...  Didn't try that hard.
> > > > > >> >  Acad
> > > >
> > > > ->
> > > >
> > > > > >> ace
> > > > > >>
> > > > > >> > converter for simple stuff like this.  (Or by hand)
> > > > > >>
> > > > > >> I have a bunch of little C programs that write most of my
> > > > > >> G-code. Making round bores and rectangular pockets, and
> > > > > >> trepanning both of those shapes in sheet materials.  All of
> > > > > >> them do it by climb mill.
> > > > > >> Even when I did some things in bobcad, I set it up for climb
> > > > > >> mill.
> > > > > >>
> > > > > >> Try it sometime, you'll be surprised how much better it
> > > > > >> works - ESPECIA

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Thought I would test a square - adding a radius to the corner certainly
helped the path following.  (I think this was .030")

https://youtu.be/Q9zhi8Mc1fE


On Mon, May 4, 2020 at 3:03 AM Gene Heskett  wrote:

> On Sunday 03 May 2020 14:34:24 Sam Sokolik wrote:
>
> > https://youtu.be/PtD9w6lp8n8
>
> Sam, dammit, you are having too much fun while the rest of us are more or
> less locked up.
>
> But it shows others what LinuxCNC CAN do, so I love it. That said, in low
> gear, my spincle encoder scale is a bit over 14,000, so I ought to be
> able to do some of that too. If I can con it into going that slow. Since
> I have 2x the nameplate FLA to hit that motor with, I don't see why not.
> 1st step is 100 rpm in high gear, and its still turning ar 15% on the
> slider, I'll bet it can do it in low gear. Gotta get me a boring head
> athough I see you aren't always useing one. Gotta put a range switch on
> the tach, its sorta difficult to see 10 rpm on a 3000 scale.  I wonder
> just how far I can push PGain at that sort of speed, its plumb stable
> and silent at 20 right now and just a bit shaky at 40. I have said for a
> long time that there isn't anything that LinuxCNC cannot do and things
> like this continue to prove it.
>
> I hope all those guys using Mach on youtube are dying of jealousy. My
> grin us hurting my ears. :)
> >
> > On Wed, Apr 29, 2020, 6:43 AM Stuart Stevenson 
> wrote:
> > > Sam,
> > >   I heard you say your circle is a polygon of a thousand sides.
> > >
> > > In APT4 a circle of 2500 inches radius is calculated as a straight
> > > line. That allows an algorithm for part profiles to be described as
> > > all radiuses and the variable values determine the lines and
> > > circles.
> > > Just another possibly interesting random detail out of the wet
> > > ram(thanks Gene) brought out by a random comment.
> > >
> > > Love your videos.
> > >
> > > Stuart
>
> All it takes is for somebody to ask 'what if?'.  I do it occasionally, so
> have you, but Sam seems like he does it a lot. And all of us benefit
> from this lists ability to answer the questions generated by our wildest
> dreams.
>
> Thank you all.
>
> > > On Tue, Apr 28, 2020 at 9:57 PM Sam Sokolik 
> wrote:
> > > > just to see if it would...
> > > >
> > > > https://youtu.be/a7CO9gohaXE
> > > >
> > > > On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik 
> wrote:
> > > > > the new encoder seems to work good :)
> > > > >
> > > > >
> > > > >
> > > > > On Tue, Apr 21, 2020 at 9:53 PM Jon Elson
> > > > > 
> > > >
> > > > wrote:
> > > > >> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
> > > > >> > Just the way the path was generated...  Didn't try that hard.
> > > > >> >  Acad
> > >
> > > ->
> > >
> > > > >> ace
> > > > >>
> > > > >> > converter for simple stuff like this.  (Or by hand)
> > > > >>
> > > > >> I have a bunch of little C programs that write most of my
> > > > >> G-code. Making round bores and rectangular pockets, and
> > > > >> trepanning both of those shapes in sheet materials.  All of
> > > > >> them do it by climb mill.
> > > > >> Even when I did some things in bobcad, I set it up for climb
> > > > >> mill.
> > > > >>
> > > > >> Try it sometime, you'll be surprised how much better it
> > > > >> works - ESPECIALLY in aluminum.  Just program it to go
> > > > >> counterclockwise around any internal pocket.
> > > > >>
> > > > >> Jon
> > > > >>
> > > > >>
> > > > >> ___
> > > > >> 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.
> > >
> > > ___
> > > 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)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page 
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Gene Heskett]

On Sunday 03 May 2020 14:34:24 Sam Sokolik wrote:

> https://youtu.be/PtD9w6lp8n8

Sam, dammit, you are having too much fun while the rest of us are more or 
less locked up. 

But it shows others what LinuxCNC CAN do, so I love it. That said, in low 
gear, my spincle encoder scale is a bit over 14,000, so I ought to be 
able to do some of that too. If I can con it into going that slow. Since 
I have 2x the nameplate FLA to hit that motor with, I don't see why not. 
1st step is 100 rpm in high gear, and its still turning ar 15% on the 
slider, I'll bet it can do it in low gear. Gotta get me a boring head 
athough I see you aren't always useing one. Gotta put a range switch on 
the tach, its sorta difficult to see 10 rpm on a 3000 scale.  I wonder 
just how far I can push PGain at that sort of speed, its plumb stable 
and silent at 20 right now and just a bit shaky at 40. I have said for a 
long time that there isn't anything that LinuxCNC cannot do and things 
like this continue to prove it.

I hope all those guys using Mach on youtube are dying of jealousy. My 
grin us hurting my ears. :)
>
> On Wed, Apr 29, 2020, 6:43 AM Stuart Stevenson  
wrote:
> > Sam,
> >   I heard you say your circle is a polygon of a thousand sides.
> >
> > In APT4 a circle of 2500 inches radius is calculated as a straight
> > line. That allows an algorithm for part profiles to be described as
> > all radiuses and the variable values determine the lines and
> > circles.
> > Just another possibly interesting random detail out of the wet
> > ram(thanks Gene) brought out by a random comment.
> >
> > Love your videos.
> >
> > Stuart

All it takes is for somebody to ask 'what if?'.  I do it occasionally, so 
have you, but Sam seems like he does it a lot. And all of us benefit 
from this lists ability to answer the questions generated by our wildest 
dreams.

Thank you all.

> > On Tue, Apr 28, 2020 at 9:57 PM Sam Sokolik  
wrote:
> > > just to see if it would...
> > >
> > > https://youtu.be/a7CO9gohaXE
> > >
> > > On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik  
wrote:
> > > > the new encoder seems to work good :)
> > > >
> > > >
> > > >
> > > > On Tue, Apr 21, 2020 at 9:53 PM Jon Elson
> > > > 
> > >
> > > wrote:
> > > >> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
> > > >> > Just the way the path was generated...  Didn't try that hard.
> > > >> >  Acad
> >
> > ->
> >
> > > >> ace
> > > >>
> > > >> > converter for simple stuff like this.  (Or by hand)
> > > >>
> > > >> I have a bunch of little C programs that write most of my
> > > >> G-code. Making round bores and rectangular pockets, and
> > > >> trepanning both of those shapes in sheet materials.  All of
> > > >> them do it by climb mill.
> > > >> Even when I did some things in bobcad, I set it up for climb
> > > >> mill.
> > > >>
> > > >> Try it sometime, you'll be surprised how much better it
> > > >> works - ESPECIALLY in aluminum.  Just program it to go
> > > >> counterclockwise around any internal pocket.
> > > >>
> > > >> Jon
> > > >>
> > > >>
> > > >> ___
> > > >> 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.
> >
> > ___
> > 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)
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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

https://youtu.be/PtD9w6lp8n8


On Wed, Apr 29, 2020, 6:43 AM Stuart Stevenson  wrote:

> Sam,
>   I heard you say your circle is a polygon of a thousand sides.
>
> In APT4 a circle of 2500 inches radius is calculated as a straight line.
> That allows an algorithm for part profiles to be described as all radiuses
> and the variable values determine the lines and circles.
> Just another possibly interesting random detail out of the wet ram(thanks
> Gene) brought out by a random comment.
>
> Love your videos.
>
> Stuart
>
>
>
> On Tue, Apr 28, 2020 at 9:57 PM Sam Sokolik  wrote:
>
> > just to see if it would...
> >
> > https://youtu.be/a7CO9gohaXE
> >
> >
> >
> > On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik  wrote:
> >
> > > the new encoder seems to work good :)
> > >
> > >
> > >
> > > On Tue, Apr 21, 2020 at 9:53 PM Jon Elson 
> > wrote:
> > >
> > >> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
> > >> > Just the way the path was generated...  Didn't try that hard.  Acad
> ->
> > >> ace
> > >> > converter for simple stuff like this.  (Or by hand)
> > >> >
> > >> >
> > >> I have a bunch of little C programs that write most of my
> > >> G-code. Making round bores and rectangular pockets, and
> > >> trepanning both of those shapes in sheet materials.  All of
> > >> them do it by climb mill.
> > >> Even when I did some things in bobcad, I set it up for climb
> > >> mill.
> > >>
> > >> Try it sometime, you'll be surprised how much better it
> > >> works - ESPECIALLY in aluminum.  Just program it to go
> > >> counterclockwise around any internal pocket.
> > >>
> > >> Jon
> > >>
> > >>
> > >> ___
> > >> 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.
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Stuart Stevenson]

Sam,
  I heard you say your circle is a polygon of a thousand sides.

In APT4 a circle of 2500 inches radius is calculated as a straight line.
That allows an algorithm for part profiles to be described as all radiuses
and the variable values determine the lines and circles.
Just another possibly interesting random detail out of the wet ram(thanks
Gene) brought out by a random comment.

Love your videos.

Stuart



On Tue, Apr 28, 2020 at 9:57 PM Sam Sokolik  wrote:

> just to see if it would...
>
> https://youtu.be/a7CO9gohaXE
>
>
>
> On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik  wrote:
>
> > the new encoder seems to work good :)
> >
> >
> >
> > On Tue, Apr 21, 2020 at 9:53 PM Jon Elson 
> wrote:
> >
> >> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
> >> > Just the way the path was generated...  Didn't try that hard.  Acad ->
> >> ace
> >> > converter for simple stuff like this.  (Or by hand)
> >> >
> >> >
> >> I have a bunch of little C programs that write most of my
> >> G-code. Making round bores and rectangular pockets, and
> >> trepanning both of those shapes in sheet materials.  All of
> >> them do it by climb mill.
> >> Even when I did some things in bobcad, I set it up for climb
> >> mill.
> >>
> >> Try it sometime, you'll be surprised how much better it
> >> works - ESPECIALLY in aluminum.  Just program it to go
> >> counterclockwise around any internal pocket.
> >>
> >> Jon
> >>
> >>
> >> ___
> >> 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] Non-circular boring. Linuxcnc style.

[John Dammeyer]

> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: April-28-20 7:56 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> just to see if it would...
> 
> https://youtu.be/a7CO9gohaXE
> 

I think what you are doing is just so cool.
John Dammeyer.


> 
> 
> On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik  wrote:
> 
> > the new encoder seems to work good :)
> >
> >
> >
> > On Tue, Apr 21, 2020 at 9:53 PM Jon Elson  wrote:
> >
> >> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
> >> > Just the way the path was generated...  Didn't try that hard.  Acad ->
> >> ace
> >> > converter for simple stuff like this.  (Or by hand)
> >> >
> >> >
> >> I have a bunch of little C programs that write most of my
> >> G-code. Making round bores and rectangular pockets, and
> >> trepanning both of those shapes in sheet materials.  All of
> >> them do it by climb mill.
> >> Even when I did some things in bobcad, I set it up for climb
> >> mill.
> >>
> >> Try it sometime, you'll be surprised how much better it
> >> works - ESPECIALLY in aluminum.  Just program it to go
> >> counterclockwise around any internal pocket.
> >>
> >> Jon
> >>
> >>
> >> ___
> >> 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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

just to see if it would...

https://youtu.be/a7CO9gohaXE



On Sun, Apr 26, 2020 at 2:54 PM Sam Sokolik  wrote:

> the new encoder seems to work good :)
>
>
>
> On Tue, Apr 21, 2020 at 9:53 PM Jon Elson  wrote:
>
>> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
>> > Just the way the path was generated...  Didn't try that hard.  Acad ->
>> ace
>> > converter for simple stuff like this.  (Or by hand)
>> >
>> >
>> I have a bunch of little C programs that write most of my
>> G-code. Making round bores and rectangular pockets, and
>> trepanning both of those shapes in sheet materials.  All of
>> them do it by climb mill.
>> Even when I did some things in bobcad, I set it up for climb
>> mill.
>>
>> Try it sometime, you'll be surprised how much better it
>> works - ESPECIALLY in aluminum.  Just program it to go
>> counterclockwise around any internal pocket.
>>
>> Jon
>>
>>
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

the new encoder seems to work good :)



On Tue, Apr 21, 2020 at 9:53 PM Jon Elson  wrote:

> On 04/21/2020 09:11 PM, Sam Sokolik wrote:
> > Just the way the path was generated...  Didn't try that hard.  Acad ->
> ace
> > converter for simple stuff like this.  (Or by hand)
> >
> >
> I have a bunch of little C programs that write most of my
> G-code. Making round bores and rectangular pockets, and
> trepanning both of those shapes in sheet materials.  All of
> them do it by climb mill.
> Even when I did some things in bobcad, I set it up for climb
> mill.
>
> Try it sometime, you'll be surprised how much better it
> works - ESPECIALLY in aluminum.  Just program it to go
> counterclockwise around any internal pocket.
>
> Jon
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Jon Elson]

On 04/21/2020 09:11 PM, Sam Sokolik wrote:

Just the way the path was generated...  Didn't try that hard.  Acad -> ace
converter for simple stuff like this.  (Or by hand)


I have a bunch of little C programs that write most of my 
G-code. Making round bores and rectangular pockets, and 
trepanning both of those shapes in sheet materials.  All of 
them do it by climb mill.
Even when I did some things in bobcad, I set it up for climb 
mill.


Try it sometime, you'll be surprised how much better it 
works - ESPECIALLY in aluminum.  Just program it to go 
counterclockwise around any internal pocket.


Jon


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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Just the way the path was generated...  Didn't try that hard.  Acad -> ace
converter for simple stuff like this.  (Or by hand)

On Tue, Apr 21, 2020, 9:06 PM Jon Elson  wrote:

> On 04/21/2020 08:19 PM, Sam Sokolik wrote:
> > Some of the machining,
> >
> > https://youtu.be/sXU0e2dmtwU
> >
> >
> How come you did all that conventional milling?  You get
> better surface finish and longer tool life
> with climb milling.I do practically everything by climb milling.
>
> Jon
>
>
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Jon Elson]

On 04/21/2020 08:19 PM, Sam Sokolik wrote:

Some of the machining,

https://youtu.be/sXU0e2dmtwU


How come you did all that conventional milling?  You get 
better surface finish and longer tool life

with climb milling.I do practically everything by climb milling.

Jon


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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Some of the machining,

https://youtu.be/sXU0e2dmtwU

On Tue, Apr 21, 2020 at 8:17 PM Sam Sokolik  wrote:

> || close...
>
>
>
>
> On Tue, Apr 14, 2020 at 6:28 PM dave engvall  wrote:
>
>> I was just going to comment that if you have to circular mill then the
>> initial use of a drill might be faster and safer.
>>
>> Dave
>>
>> On 4/14/20 4:03 PM, John Dammeyer wrote:
>> > So if I don't have a center cutting end mill then it's probably a good
>> idea to drill a hole so that the overlap criteria can be met?  I guess plan
>> the hole in the CNC part drawing?
>> >
>> >> -Original Message-
>> >> From: dave engvall [mailto:dengv...@charter.net]
>> >> Sent: April-14-20 11:37 AM
>> >> To: emc-users@lists.sourceforge.net
>> >> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
>> >>
>> >> I've never had much luck with plunging end mills full dia. Probably
>> >> works better with HSS , not so brittle. However, I plunge cut at 40%
>> >> overlap and 15 - 18 ipm at 2200 with .25 carbide. Get fair life doing
>> >> that. On the same rather flexible mill using a 1/2" rougher I'm good
>> for
>> >> .1" radial cuts. That works well when they overlap as in really rough
>> >> profiling. In general I'm working with 1018 crs or A36.� Doing full dia
>> >> plunge cuts it is easy to run out of stiffness and power with a 1 hp
>> >> belt-driven spindle.
>> >>
>> >> I still have hopes of getting the Mazak operational again and that will
>> >> be a game changer.
>> >>
>> >> Dave
>> >>
>> >> On 4/14/20 10:55 AM, Sam Sokolik wrote:
>> >>> we have various forms of these type calculators that seem to work well
>> >>>
>> >>>
>> https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-
>> >> Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M
>> >>> On Tue, Apr 14, 2020 at 12:50 PM John Dammeyer <
>> jo...@autoartisans.com>
>> >>> wrote:
>> >>>
>> >>>> Thanks.  The last bit of LinuxCNC milling with a 6mm carbide
>> plunging into
>> >>>> HRS broke two of them.  I'm really not doing this right yet.  So any
>> >>>> examples of feeds, speeds and coolant are really helpful.
>> >>>>
>> >>>> John Dammeyer
>> >>>>
>> >>>>> -Original Message-
>> >>>>> From: Sam Sokolik [mailto:samco...@gmail.com]
>> >>>>> Sent: April-14-20 10:38 AM
>> >>>>> To: Enhanced Machine Controller (EMC)
>> >>>>> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
>> >>>>>
>> >>>>> sorry - forgot a few things.. The mill was a resharpened at about
>> .47".
>> >>>>> (why it took 2 tries to get the size where I wanted it)  the timing
>> gear
>> >>>>> was aluminum.
>> >>>>>
>> >>>>> On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:
>> >>>>>
>> >>>>>> On 4/14/20 9:53 AM, Sam Sokolik wrote:
>> >>>>>>> now to upgrade the spindle encoder...
>> >>>>>>>
>> >>>>>>> https://youtu.be/VmWeXS6y-lg
>> >>>>>>>
>> >>>>>>> On Fri, Apr 10, 2020 at 9:00 PM andy pugh 
>> >>>> wrote:
>> >>>>>>>> On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
>> >>>>>>>>
>> >>>>>>>>> I'm thinking gear hobs or single cutters.
>> >>>>>>>> I have been thinking of making gear hobs this way for a while.
>> What
>> >>>>>>>> holds me back is that I am not sure that I know how to heat treat
>> >>>> the
>> >>>>>>>> hob to a state that will cut the materials that I want to make
>> gears
>> >>>>>>>> out of.
>> >>>>>>>>
>> >>>>>>>> --
>> >>>>>> Heat treating D2 is not a problem here and would work well if a
>> little
>> >>>>>> slower than M2 high speed. A higher temp furnace is in the plans. I
>> >>>> keep
>> >>>>>> some D2 on hand.
>> >>>&g

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

|| close...




On Tue, Apr 14, 2020 at 6:28 PM dave engvall  wrote:

> I was just going to comment that if you have to circular mill then the
> initial use of a drill might be faster and safer.
>
> Dave
>
> On 4/14/20 4:03 PM, John Dammeyer wrote:
> > So if I don't have a center cutting end mill then it's probably a good
> idea to drill a hole so that the overlap criteria can be met?  I guess plan
> the hole in the CNC part drawing?
> >
> >> -Original Message-
> >> From: dave engvall [mailto:dengv...@charter.net]
> >> Sent: April-14-20 11:37 AM
> >> To: emc-users@lists.sourceforge.net
> >> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >>
> >> I've never had much luck with plunging end mills full dia. Probably
> >> works better with HSS , not so brittle. However, I plunge cut at 40%
> >> overlap and 15 - 18 ipm at 2200 with .25 carbide. Get fair life doing
> >> that. On the same rather flexible mill using a 1/2" rougher I'm good for
> >> .1" radial cuts. That works well when they overlap as in really rough
> >> profiling. In general I'm working with 1018 crs or A36.� Doing full dia
> >> plunge cuts it is easy to run out of stiffness and power with a 1 hp
> >> belt-driven spindle.
> >>
> >> I still have hopes of getting the Mazak operational again and that will
> >> be a game changer.
> >>
> >> Dave
> >>
> >> On 4/14/20 10:55 AM, Sam Sokolik wrote:
> >>> we have various forms of these type calculators that seem to work well
> >>>
> >>>
> https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-
> >> Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M
> >>> On Tue, Apr 14, 2020 at 12:50 PM John Dammeyer  >
> >>> wrote:
> >>>
> >>>> Thanks.  The last bit of LinuxCNC milling with a 6mm carbide plunging
> into
> >>>> HRS broke two of them.  I'm really not doing this right yet.  So any
> >>>> examples of feeds, speeds and coolant are really helpful.
> >>>>
> >>>> John Dammeyer
> >>>>
> >>>>> -Original Message-
> >>>>> From: Sam Sokolik [mailto:samco...@gmail.com]
> >>>>> Sent: April-14-20 10:38 AM
> >>>>> To: Enhanced Machine Controller (EMC)
> >>>>> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >>>>>
> >>>>> sorry - forgot a few things.. The mill was a resharpened at about
> .47".
> >>>>> (why it took 2 tries to get the size where I wanted it)  the timing
> gear
> >>>>> was aluminum.
> >>>>>
> >>>>> On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:
> >>>>>
> >>>>>> On 4/14/20 9:53 AM, Sam Sokolik wrote:
> >>>>>>> now to upgrade the spindle encoder...
> >>>>>>>
> >>>>>>> https://youtu.be/VmWeXS6y-lg
> >>>>>>>
> >>>>>>> On Fri, Apr 10, 2020 at 9:00 PM andy pugh 
> >>>> wrote:
> >>>>>>>> On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
> >>>>>>>>
> >>>>>>>>> I'm thinking gear hobs or single cutters.
> >>>>>>>> I have been thinking of making gear hobs this way for a while.
> What
> >>>>>>>> holds me back is that I am not sure that I know how to heat treat
> >>>> the
> >>>>>>>> hob to a state that will cut the materials that I want to make
> gears
> >>>>>>>> out of.
> >>>>>>>>
> >>>>>>>> --
> >>>>>> Heat treating D2 is not a problem here and would work well if a
> little
> >>>>>> slower than M2 high speed. A higher temp furnace is in the plans. I
> >>>> keep
> >>>>>> some D2 on hand.
> >>>>>>
> >>>>>> I am being pushed by a couple customers to get my horizontal/hobbing
> >>>>>> machine finished and that will be able to do this kind of work.
> Soon I
> >>>>>> will be paging Andy to help with the setup. :-)
> >>>>>>
> >>>>>> Ed.
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> 

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[dave engvall]

I was just going to comment that if you have to circular mill then the 
initial use of a drill might be faster and safer.


Dave

On 4/14/20 4:03 PM, John Dammeyer wrote:

So if I don't have a center cutting end mill then it's probably a good idea to 
drill a hole so that the overlap criteria can be met?  I guess plan the hole in 
the CNC part drawing?


-Original Message-
From: dave engvall [mailto:dengv...@charter.net]
Sent: April-14-20 11:37 AM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.

I've never had much luck with plunging end mills full dia. Probably
works better with HSS , not so brittle. However, I plunge cut at 40%
overlap and 15 - 18 ipm at 2200 with .25 carbide. Get fair life doing
that. On the same rather flexible mill using a 1/2" rougher I'm good for
.1" radial cuts. That works well when they overlap as in really rough
profiling. In general I'm working with 1018 crs or A36.� Doing full dia
plunge cuts it is easy to run out of stiffness and power with a 1 hp
belt-driven spindle.

I still have hopes of getting the Mazak operational again and that will
be a game changer.

Dave

On 4/14/20 10:55 AM, Sam Sokolik wrote:

we have various forms of these type calculators that seem to work well

https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-

Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M

On Tue, Apr 14, 2020 at 12:50 PM John Dammeyer 
wrote:


Thanks.  The last bit of LinuxCNC milling with a 6mm carbide plunging into
HRS broke two of them.  I'm really not doing this right yet.  So any
examples of feeds, speeds and coolant are really helpful.

John Dammeyer


-Original Message-
From: Sam Sokolik [mailto:samco...@gmail.com]
Sent: April-14-20 10:38 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.

sorry - forgot a few things.. The mill was a resharpened at about .47".
(why it took 2 tries to get the size where I wanted it)  the timing gear
was aluminum.

On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:


On 4/14/20 9:53 AM, Sam Sokolik wrote:

now to upgrade the spindle encoder...

https://youtu.be/VmWeXS6y-lg

On Fri, Apr 10, 2020 at 9:00 PM andy pugh 

wrote:

On Sat, 11 Apr 2020 at 02:50, Ed  wrote:


I'm thinking gear hobs or single cutters.

I have been thinking of making gear hobs this way for a while. What
holds me back is that I am not sure that I know how to heat treat

the

hob to a state that will cut the materials that I want to make gears
out of.

--

Heat treating D2 is not a problem here and would work well if a little
slower than M2 high speed. A higher temp furnace is in the plans. I

keep

some D2 on hand.

I am being pushed by a couple customers to get my horizontal/hobbing
machine finished and that will be able to do this kind of work. Soon I
will be paging Andy to help with the setup. :-)

Ed.




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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

So if I don't have a center cutting end mill then it's probably a good idea to 
drill a hole so that the overlap criteria can be met?  I guess plan the hole in 
the CNC part drawing?

> -Original Message-
> From: dave engvall [mailto:dengv...@charter.net]
> Sent: April-14-20 11:37 AM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> I've never had much luck with plunging end mills full dia. Probably
> works better with HSS , not so brittle. However, I plunge cut at 40%
> overlap and 15 - 18 ipm at 2200 with .25 carbide. Get fair life doing
> that. On the same rather flexible mill using a 1/2" rougher I'm good for
> .1" radial cuts. That works well when they overlap as in really rough
> profiling. In general I'm working with 1018 crs or A36.� Doing full dia
> plunge cuts it is easy to run out of stiffness and power with a 1 hp
> belt-driven spindle.
> 
> I still have hopes of getting the Mazak operational again and that will
> be a game changer.
> 
> Dave
> 
> On 4/14/20 10:55 AM, Sam Sokolik wrote:
> > we have various forms of these type calculators that seem to work well
> >
> > https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-
> Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M
> >
> > On Tue, Apr 14, 2020 at 12:50 PM John Dammeyer 
> > wrote:
> >
> >> Thanks.  The last bit of LinuxCNC milling with a 6mm carbide plunging into
> >> HRS broke two of them.  I'm really not doing this right yet.  So any
> >> examples of feeds, speeds and coolant are really helpful.
> >>
> >> John Dammeyer
> >>
> >>> -----Original Message-----
> >>> From: Sam Sokolik [mailto:samco...@gmail.com]
> >>> Sent: April-14-20 10:38 AM
> >>> To: Enhanced Machine Controller (EMC)
> >>> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >>>
> >>> sorry - forgot a few things.. The mill was a resharpened at about .47".
> >>> (why it took 2 tries to get the size where I wanted it)  the timing gear
> >>> was aluminum.
> >>>
> >>> On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:
> >>>
> >>>> On 4/14/20 9:53 AM, Sam Sokolik wrote:
> >>>>> now to upgrade the spindle encoder...
> >>>>>
> >>>>> https://youtu.be/VmWeXS6y-lg
> >>>>>
> >>>>> On Fri, Apr 10, 2020 at 9:00 PM andy pugh 
> >> wrote:
> >>>>>> On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
> >>>>>>
> >>>>>>> I'm thinking gear hobs or single cutters.
> >>>>>> I have been thinking of making gear hobs this way for a while. What
> >>>>>> holds me back is that I am not sure that I know how to heat treat
> >> the
> >>>>>> hob to a state that will cut the materials that I want to make gears
> >>>>>> out of.
> >>>>>>
> >>>>>> --
> >>>> Heat treating D2 is not a problem here and would work well if a little
> >>>> slower than M2 high speed. A higher temp furnace is in the plans. I
> >> keep
> >>>> some D2 on hand.
> >>>>
> >>>> I am being pushed by a couple customers to get my horizontal/hobbing
> >>>> machine finished and that will be able to do this kind of work. Soon I
> >>>> will be paging Andy to help with the setup. :-)
> >>>>
> >>>> Ed.
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> ___
> >>>> 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] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Yikes.

> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: April-14-20 12:05 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> Or...  Thinking the mill is carbide but it isn't...
> 
> http://electronicsam.com/images/KandT/huh_not_carbide.jpg
> 
> 
> On Tue, Apr 14, 2020, 1:44 PM dave engvall  wrote:
> 
> > IIRC a full dia plunge with a non-center cutting end mill is an
> > experiment in friction welding. ;-)
> >
> > Dave
> >
> > On 4/14/20 11:31 AM, andy pugh wrote:
> > > On Tue, 14 Apr 2020 at 19:26, John Dammeyer 
> > wrote:
> > >
> > >> And I don't think one should plunge into HRS with a 4 flute mill.
> > > Was it a centre-cutting mill? 4-flute ones often are not.
> > >
> >
> >
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
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> 
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Jon Elson]

On 04/14/2020 12:48 PM, John Dammeyer wrote:

Thanks.  The last bit of LinuxCNC milling with a 6mm carbide plunging into HRS 
broke two of them.  I'm really not doing this right yet.  So any examples of 
feeds, speeds and coolant are really helpful.


If the end mill is center-cutting, then you should be able 
to do it, but chip clearance and stresses

on the carbide may be a problem.

If NOT center-cutting, then you have to do a circular 
ramp-down cut, and make it enough bigger than
the end mill's diameter so that the non-cutting area in the 
center of the tool doesn't leave a bump

in the middle of the hole.

Jon


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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Or...  Thinking the mill is carbide but it isn't...

http://electronicsam.com/images/KandT/huh_not_carbide.jpg


On Tue, Apr 14, 2020, 1:44 PM dave engvall  wrote:

> IIRC a full dia plunge with a non-center cutting end mill is an
> experiment in friction welding. ;-)
>
> Dave
>
> On 4/14/20 11:31 AM, andy pugh wrote:
> > On Tue, 14 Apr 2020 at 19:26, John Dammeyer 
> wrote:
> >
> >> And I don't think one should plunge into HRS with a 4 flute mill.
> > Was it a centre-cutting mill? 4-flute ones often are not.
> >
>
>
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[dave engvall]

IIRC a full dia plunge with a non-center cutting end mill is an 
experiment in friction welding. ;-)


Dave

On 4/14/20 11:31 AM, andy pugh wrote:

On Tue, 14 Apr 2020 at 19:26, John Dammeyer  wrote:


And I don't think one should plunge into HRS with a 4 flute mill.

Was it a centre-cutting mill? 4-flute ones often are not.




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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[dave engvall]

I've never had much luck with plunging end mills full dia. Probably 
works better with HSS , not so brittle. However, I plunge cut at 40% 
overlap and 15 - 18 ipm at 2200 with .25 carbide. Get fair life doing 
that. On the same rather flexible mill using a 1/2" rougher I'm good for 
.1" radial cuts. That works well when they overlap as in really rough 
profiling. In general I'm working with 1018 crs or A36.  Doing full dia 
plunge cuts it is easy to run out of stiffness and power with a 1 hp 
belt-driven spindle.


I still have hopes of getting the Mazak operational again and that will 
be a game changer.


Dave

On 4/14/20 10:55 AM, Sam Sokolik wrote:

we have various forms of these type calculators that seem to work well

https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M

On Tue, Apr 14, 2020 at 12:50 PM John Dammeyer 
wrote:


Thanks.  The last bit of LinuxCNC milling with a 6mm carbide plunging into
HRS broke two of them.  I'm really not doing this right yet.  So any
examples of feeds, speeds and coolant are really helpful.

John Dammeyer


-Original Message-
From: Sam Sokolik [mailto:samco...@gmail.com]
Sent: April-14-20 10:38 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.

sorry - forgot a few things.. The mill was a resharpened at about .47".
(why it took 2 tries to get the size where I wanted it)  the timing gear
was aluminum.

On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:


On 4/14/20 9:53 AM, Sam Sokolik wrote:

now to upgrade the spindle encoder...

https://youtu.be/VmWeXS6y-lg

On Fri, Apr 10, 2020 at 9:00 PM andy pugh 

wrote:

On Sat, 11 Apr 2020 at 02:50, Ed  wrote:


I'm thinking gear hobs or single cutters.

I have been thinking of making gear hobs this way for a while. What
holds me back is that I am not sure that I know how to heat treat

the

hob to a state that will cut the materials that I want to make gears
out of.

--

Heat treating D2 is not a problem here and would work well if a little
slower than M2 high speed. A higher temp furnace is in the plans. I

keep

some D2 on hand.

I am being pushed by a couple customers to get my horizontal/hobbing
machine finished and that will be able to do this kind of work. Soon I
will be paging Andy to help with the setup. :-)

Ed.




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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[andy pugh]

On Tue, 14 Apr 2020 at 19:26, John Dammeyer  wrote:

> And I don't think one should plunge into HRS with a 4 flute mill.

Was it a centre-cutting mill? 4-flute ones often are not.

-- 
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] Non-circular boring. Linuxcnc style.

[John Dammeyer]

> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> 
> we have various forms of these type calculators that seem to work well
> 
> https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-
> Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M

I have the machinst tool box program that I use as a starting point. So many of 
these appear to be targeted at the production shop.  So I often cut the feed 
rates in half leaving the spindle at the required setting.  Maybe both need to 
be slowed?  Or maybe my system still has too much slop.  And I don't think one 
should plunge into HRS with a 4 flute mill.  Clearly I went in too fast.  After 
the first one broke I was frustrated and continued on without changing things.  

This all happened at the same time as my Z axis Gecko Failure.  So I was  very 
impatient to get the work done.  Should have taken a step back.

John



> 
> On Tue, Apr 14, 2020 at 12:50 PM John Dammeyer 
> wrote:
> 
> > Thanks.  The last bit of LinuxCNC milling with a 6mm carbide plunging into
> > HRS broke two of them.  I'm really not doing this right yet.  So any
> > examples of feeds, speeds and coolant are really helpful.
> >
> > John Dammeyer
> >
> > > -Original Message-
> > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > Sent: April-14-20 10:38 AM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >
> > > sorry - forgot a few things.. The mill was a resharpened at about .47".
> > > (why it took 2 tries to get the size where I wanted it)  the timing gear
> > > was aluminum.
> > >
> > > On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:
> > >
> > > > On 4/14/20 9:53 AM, Sam Sokolik wrote:
> > > > > now to upgrade the spindle encoder...
> > > > >
> > > > > https://youtu.be/VmWeXS6y-lg
> > > > >
> > > > > On Fri, Apr 10, 2020 at 9:00 PM andy pugh 
> > wrote:
> > > > >
> > > > >> On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
> > > > >>
> > > > >>> I'm thinking gear hobs or single cutters.
> > > > >> I have been thinking of making gear hobs this way for a while. What
> > > > >> holds me back is that I am not sure that I know how to heat treat
> > the
> > > > >> hob to a state that will cut the materials that I want to make gears
> > > > >> out of.
> > > > >>
> > > > >> --
> > > >
> > > > Heat treating D2 is not a problem here and would work well if a little
> > > > slower than M2 high speed. A higher temp furnace is in the plans. I
> > keep
> > > > some D2 on hand.
> > > >
> > > > I am being pushed by a couple customers to get my horizontal/hobbing
> > > > machine finished and that will be able to do this kind of work. Soon I
> > > > will be paging Andy to help with the setup. :-)
> > > >
> > > > Ed.
> > > >
> > > >
> > > >
> > > >
> > > > ___
> > > > 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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

we have various forms of these type calculators that seem to work well

https://www.ebay.com/itm/Vintage-Valenite-SPEED-AND-FEED-CALCULATOR-1981-Datailzer-Slide-Charts/164146745960?hash=item2637e89268:g:V~oAAOSwIGleb93M

On Tue, Apr 14, 2020 at 12:50 PM John Dammeyer 
wrote:

> Thanks.  The last bit of LinuxCNC milling with a 6mm carbide plunging into
> HRS broke two of them.  I'm really not doing this right yet.  So any
> examples of feeds, speeds and coolant are really helpful.
>
> John Dammeyer
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: April-14-20 10:38 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > sorry - forgot a few things.. The mill was a resharpened at about .47".
> > (why it took 2 tries to get the size where I wanted it)  the timing gear
> > was aluminum.
> >
> > On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:
> >
> > > On 4/14/20 9:53 AM, Sam Sokolik wrote:
> > > > now to upgrade the spindle encoder...
> > > >
> > > > https://youtu.be/VmWeXS6y-lg
> > > >
> > > > On Fri, Apr 10, 2020 at 9:00 PM andy pugh 
> wrote:
> > > >
> > > >> On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
> > > >>
> > > >>> I'm thinking gear hobs or single cutters.
> > > >> I have been thinking of making gear hobs this way for a while. What
> > > >> holds me back is that I am not sure that I know how to heat treat
> the
> > > >> hob to a state that will cut the materials that I want to make gears
> > > >> out of.
> > > >>
> > > >> --
> > >
> > > Heat treating D2 is not a problem here and would work well if a little
> > > slower than M2 high speed. A higher temp furnace is in the plans. I
> keep
> > > some D2 on hand.
> > >
> > > I am being pushed by a couple customers to get my horizontal/hobbing
> > > machine finished and that will be able to do this kind of work. Soon I
> > > will be paging Andy to help with the setup. :-)
> > >
> > > Ed.
> > >
> > >
> > >
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> >
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Thanks.  The last bit of LinuxCNC milling with a 6mm carbide plunging into HRS 
broke two of them.  I'm really not doing this right yet.  So any examples of 
feeds, speeds and coolant are really helpful.

John Dammeyer

> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: April-14-20 10:38 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> sorry - forgot a few things.. The mill was a resharpened at about .47".
> (why it took 2 tries to get the size where I wanted it)  the timing gear
> was aluminum.
> 
> On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:
> 
> > On 4/14/20 9:53 AM, Sam Sokolik wrote:
> > > now to upgrade the spindle encoder...
> > >
> > > https://youtu.be/VmWeXS6y-lg
> > >
> > > On Fri, Apr 10, 2020 at 9:00 PM andy pugh  wrote:
> > >
> > >> On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
> > >>
> > >>> I'm thinking gear hobs or single cutters.
> > >> I have been thinking of making gear hobs this way for a while. What
> > >> holds me back is that I am not sure that I know how to heat treat the
> > >> hob to a state that will cut the materials that I want to make gears
> > >> out of.
> > >>
> > >> --
> >
> > Heat treating D2 is not a problem here and would work well if a little
> > slower than M2 high speed. A higher temp furnace is in the plans. I keep
> > some D2 on hand.
> >
> > I am being pushed by a couple customers to get my horizontal/hobbing
> > machine finished and that will be able to do this kind of work. Soon I
> > will be paging Andy to help with the setup. :-)
> >
> > Ed.
> >
> >
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

sorry - forgot a few things.. The mill was a resharpened at about .47".
(why it took 2 tries to get the size where I wanted it)  the timing gear
was aluminum.

On Tue, Apr 14, 2020 at 12:26 PM Ed  wrote:

> On 4/14/20 9:53 AM, Sam Sokolik wrote:
> > now to upgrade the spindle encoder...
> >
> > https://youtu.be/VmWeXS6y-lg
> >
> > On Fri, Apr 10, 2020 at 9:00 PM andy pugh  wrote:
> >
> >> On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
> >>
> >>> I'm thinking gear hobs or single cutters.
> >> I have been thinking of making gear hobs this way for a while. What
> >> holds me back is that I am not sure that I know how to heat treat the
> >> hob to a state that will cut the materials that I want to make gears
> >> out of.
> >>
> >> --
>
> Heat treating D2 is not a problem here and would work well if a little
> slower than M2 high speed. A higher temp furnace is in the plans. I keep
> some D2 on hand.
>
> I am being pushed by a couple customers to get my horizontal/hobbing
> machine finished and that will be able to do this kind of work. Soon I
> will be paging Andy to help with the setup. :-)
>
> Ed.
>
>
>
>
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Ed]

On 4/14/20 9:53 AM, Sam Sokolik wrote:

now to upgrade the spindle encoder...

https://youtu.be/VmWeXS6y-lg

On Fri, Apr 10, 2020 at 9:00 PM andy pugh  wrote:


On Sat, 11 Apr 2020 at 02:50, Ed  wrote:


I'm thinking gear hobs or single cutters.

I have been thinking of making gear hobs this way for a while. What
holds me back is that I am not sure that I know how to heat treat the
hob to a state that will cut the materials that I want to make gears
out of.

--


Heat treating D2 is not a problem here and would work well if a little 
slower than M2 high speed. A higher temp furnace is in the plans. I keep 
some D2 on hand.


I am being pushed by a couple customers to get my horizontal/hobbing 
machine finished and that will be able to do this kind of work. Soon I 
will be paging Andy to help with the setup. :-)


Ed.




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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Doing one off things like this I am very conservative..  It was a spiral
plunge at 6ipm at 2000rpm.  4 flute hhs   (The k maxes out at 3000rpm)
(it originally maxed out at 2400rpm)

On Tue, Apr 14, 2020, 12:17 PM John Dammeyer  wrote:

> Nice job so far.  I was wondering how you were going to add higher res to
> the mill.
> What feed, what size mill bit (looked like 3 flute carbide?) and what
> spindle rpm did you use to mill the hole?  Was it steel or aluminium?
> Thanks
> John Dammeyer
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: April-14-20 7:53 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > now to upgrade the spindle encoder...
> >
> > https://youtu.be/VmWeXS6y-lg
> >
> > On Fri, Apr 10, 2020 at 9:00 PM andy pugh  wrote:
> >
> > > On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
> > >
> > > > I'm thinking gear hobs or single cutters.
> > >
> > > I have been thinking of making gear hobs this way for a while. What
> > > holds me back is that I am not sure that I know how to heat treat the
> > > hob to a state that will cut the materials that I want to make gears
> > > out of.
> > >
> > > --
> > > 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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> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Nice job so far.  I was wondering how you were going to add higher res to the 
mill.
What feed, what size mill bit (looked like 3 flute carbide?) and what spindle 
rpm did you use to mill the hole?  Was it steel or aluminium?
Thanks
John Dammeyer


> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: April-14-20 7:53 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> now to upgrade the spindle encoder...
> 
> https://youtu.be/VmWeXS6y-lg
> 
> On Fri, Apr 10, 2020 at 9:00 PM andy pugh  wrote:
> 
> > On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
> >
> > > I'm thinking gear hobs or single cutters.
> >
> > I have been thinking of making gear hobs this way for a while. What
> > holds me back is that I am not sure that I know how to heat treat the
> > hob to a state that will cut the materials that I want to make gears
> > out of.
> >
> > --
> > 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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

now to upgrade the spindle encoder...

https://youtu.be/VmWeXS6y-lg

On Fri, Apr 10, 2020 at 9:00 PM andy pugh  wrote:

> On Sat, 11 Apr 2020 at 02:50, Ed  wrote:
>
> > I'm thinking gear hobs or single cutters.
>
> I have been thinking of making gear hobs this way for a while. What
> holds me back is that I am not sure that I know how to heat treat the
> hob to a state that will cut the materials that I want to make gears
> out of.
>
> --
> 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] Non-circular boring. Linuxcnc style.

[andy pugh]

On Sat, 11 Apr 2020 at 02:50, Ed  wrote:

> I'm thinking gear hobs or single cutters.

I have been thinking of making gear hobs this way for a while. What
holds me back is that I am not sure that I know how to heat treat the
hob to a state that will cut the materials that I want to make gears
out of.

-- 
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] Non-circular boring. Linuxcnc style.

[Leonardo Marsaglia]

>
> Lathe mode!
>
> https://www.youtube.com/watch?v=P0RP7s-rDsg


I really envy you. It seems you're having lots of fun with that mill!


El vie., 10 abr. 2020 a las 13:05, Sam Sokolik ()
escribió:

> Lathe mode!
>
> https://www.youtube.com/watch?v=P0RP7s-rDsg
>
> sam
>
> On Fri, Apr 3, 2020 at 4:21 PM Sam Sokolik  wrote:
>
> > Andy - I was wonder if that was possible.  I would have to look what
> comes
> > back from the stmbl drive...
> > Or I could just get a better spindle encoder...  :)
> >
> > Try to broach this!!  ;)
> >
> >
> >
> > On Tue, Mar 31, 2020 at 3:29 AM andy pugh  wrote:
> >
> >> On Tue, 31 Mar 2020 at 05:14, Sam Sokolik  wrote:
> >>
> >> > The encoder on the motor that goes back to the stmbl is pretty high
> >> count -
> >> > like 20k/rev.  But only a small ribbed belt between the motor and the
> >> > spindle.  (why I put the gear tooth encoder there)
> >>
> >> So, what you would need would be a PLL to keep the motor encoder
> >> counts in synch with the low-count encoder.
> >> There probably is actually a way to do this. Maybe a PID to add a
> >> phase difference to the motor encoder using the spindle encoder as a
> >> feedback.
> >>
> >> For normal rigid tapping the evidence seems to be that you can get
> >> away with a ribbed belt (20 or 30 turns, typically) but this
> >> application is probably as critical as it gets with many more turns
> >> than usual.
> >>
> >> --
> >> 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] Non-circular boring. Linuxcnc style.

[Ed]

On 4/10/20 8:36 PM, Gregg Eshelman via Emc-users wrote:

Now you can make your own thread taps with the cutting edges properly relieved.


 On Friday, April 10, 2020, 10:06:10 AM MDT, Sam Sokolik 
 wrote:
  Lathe mode!

https://www.youtube.com/watch?v=P0RP7s-rDsg



I'm thinking gear hobs or single cutters.


Ed.




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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Gregg Eshelman via Emc-users]

Now you can make your own thread taps with the cutting edges properly relieved.


On Friday, April 10, 2020, 10:06:10 AM MDT, Sam Sokolik 
 wrote:  
 Lathe mode!

https://www.youtube.com/watch?v=P0RP7s-rDsg  
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Lathe mode!

https://www.youtube.com/watch?v=P0RP7s-rDsg

sam

On Fri, Apr 3, 2020 at 4:21 PM Sam Sokolik  wrote:

> Andy - I was wonder if that was possible.  I would have to look what comes
> back from the stmbl drive...
> Or I could just get a better spindle encoder...  :)
>
> Try to broach this!!  ;)
>
>
>
> On Tue, Mar 31, 2020 at 3:29 AM andy pugh  wrote:
>
>> On Tue, 31 Mar 2020 at 05:14, Sam Sokolik  wrote:
>>
>> > The encoder on the motor that goes back to the stmbl is pretty high
>> count -
>> > like 20k/rev.  But only a small ribbed belt between the motor and the
>> > spindle.  (why I put the gear tooth encoder there)
>>
>> So, what you would need would be a PLL to keep the motor encoder
>> counts in synch with the low-count encoder.
>> There probably is actually a way to do this. Maybe a PID to add a
>> phase difference to the motor encoder using the spindle encoder as a
>> feedback.
>>
>> For normal rigid tapping the evidence seems to be that you can get
>> away with a ribbed belt (20 or 30 turns, typically) but this
>> application is probably as critical as it gets with many more turns
>> than usual.
>>
>> --
>> 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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>

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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Andy - I was wonder if that was possible.  I would have to look what comes
back from the stmbl drive...
Or I could just get a better spindle encoder...  :)

Try to broach this!!  ;)



On Tue, Mar 31, 2020 at 3:29 AM andy pugh  wrote:

> On Tue, 31 Mar 2020 at 05:14, Sam Sokolik  wrote:
>
> > The encoder on the motor that goes back to the stmbl is pretty high
> count -
> > like 20k/rev.  But only a small ribbed belt between the motor and the
> > spindle.  (why I put the gear tooth encoder there)
>
> So, what you would need would be a PLL to keep the motor encoder
> counts in synch with the low-count encoder.
> There probably is actually a way to do this. Maybe a PID to add a
> phase difference to the motor encoder using the spindle encoder as a
> feedback.
>
> For normal rigid tapping the evidence seems to be that you can get
> away with a ribbed belt (20 or 30 turns, typically) but this
> application is probably as critical as it gets with many more turns
> than usual.
>
> --
> 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] Non-circular boring. Linuxcnc style.

[andy pugh]

On Tue, 31 Mar 2020 at 05:14, Sam Sokolik  wrote:

> The encoder on the motor that goes back to the stmbl is pretty high count -
> like 20k/rev.  But only a small ribbed belt between the motor and the
> spindle.  (why I put the gear tooth encoder there)

So, what you would need would be a PLL to keep the motor encoder
counts in synch with the low-count encoder.
There probably is actually a way to do this. Maybe a PID to add a
phase difference to the motor encoder using the spindle encoder as a
feedback.

For normal rigid tapping the evidence seems to be that you can get
away with a ribbed belt (20 or 30 turns, typically) but this
application is probably as critical as it gets with many more turns
than usual.

-- 
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] Non-circular boring. Linuxcnc style.

[Gene Heskett]

On Tuesday 31 March 2020 00:11:56 Sam Sokolik wrote:

> The encoder on the motor that goes back to the stmbl is pretty high
> count - like 20k/rev.  But only a small ribbed belt between the motor
> and the spindle.  (why I put the gear tooth encoder there)
>
The ribbed belt, aka a polygroove can handle lots more power than a 
v-belt of equ width. But it is not without a very small slip angle so is 
impractical to turn an encoder if you intend to do any rigid tapping. 
Putting the A/B on the rear of the motor was about 4 hours work because 
makeing the motors back shaft was a bit of a problem.  I used the socket
in the back of its flush shaft as a center drill starter, and drilled 
about 10mm deep, then tapped it for a 3mmx.7 cap screw. Then I made a 
hollow brass extension shaft about 15mm long with a flange on one end 
turned about a thou hollow on its bottom face so the outside edge sat on 
the 14mm motor shaft. 3mm cap screw thru it into the motor shaft.

The encoder came with a coupler that fit a .250 shaft. Then I made 4 
standoffs after cutting away the top of the motor houseing leaving about 
5/16 around the edge, drilled the 4 corners and made an alu plate to 
hold the encoder, and stood it all up on top of the motor with 4 shop 
made standoffs.

It will take around twice the width in a toothed belt to handle the 
power.  I've stripped the teeth off a cogged belt half a dozen times 
which in turn burns up the plastic pulley on my 7x12, which now has a 
1HP treadmill motor turning it and fed to at least 1.5HP by my choice of 
psu's. Back to the G0704, I already had a home-made optical encoder on 
top of the spindle so the index pulse remained connected to it, hence 
the need for some tally switches on the knob, and some hal stuff to keep 
the pyvcp tach dead on. But the disk came loose a month back and 
totalled the opto's so the index is now a ferrous pin JBWelded to the 
side of the drawbar cap, and an ATS667.

> Maybe a toothed belt is in the future..  - could gear it down a bit
> more for slow rpm projects like this.

I'd luv to be able to switch low gear from 1500 max down to 500, but...
Unforch for me the drive in a G0704 is all gears, and made from cast 
nylon. Why I haven't munched them I haven't a clue because I'm hitting 
that 1HP 90 volt, 9.7 FLA motor with 125 volts at 17+ amps limit set in 
the Pico pwm-servo driver.

I've some hal stuff to sequence the reversal, but despite that slowdown 
dictated by Z's inability to keep up, my turn-around times from 3k to 3k 
in the opposite direction run to about 400 milliseconds.  Not too shabby 
for a piece of junk that isn't even square.  The post leans about 2 
degrees. Someday before the rapture I'd like to fix that. :(

Stay safe Sam, you are a treasure of innovation.

> On Mon, Mar 30, 2020 at 7:19 AM Gene Heskett  
wrote:
> > On Monday 30 March 2020 07:34:02 andy pugh wrote:
> > > On Sat, 28 Mar 2020 at 19:40, Sam Sokolik  
wrote:
> > > > You can really see the spindle res...
> > > > http://electronicsam.com/images/greenmachine/IMG_20200328_140150
> > > >.jpg
> > >
> > > Is there a motor encoder? You could try using that instead,
> > > especially if it's a toothed belt drive.
> >
> > I highly recommend it. I have a 1000ppr on the back of my spindle
> > motor, and some tally switches on the edge of the gear shift knob.
> > So my operative spindle scale is something over 7k in high gear and
> > a bit over 14k in low gear. That is such a fine resolution I can run
> > the PID's Pgain well above 20. There is not a detectable slowdown or
> > even working hard sound when the load comes on until I hear the iron
> > in the motor squeaking when the Pico pwm-servo's current limit kicks
> > in at around 17 amps.
> >
> > 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)
> > If we desire respect for the law, we must first make the law
> > respectable. - Louis D. Brandeis
> > Genes Web page 
> >
> >
> > ___
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>
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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)
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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

The encoder on the motor that goes back to the stmbl is pretty high count -
like 20k/rev.  But only a small ribbed belt between the motor and the
spindle.  (why I put the gear tooth encoder there)

Maybe a toothed belt is in the future..  - could gear it down a bit more
for slow rpm projects like this.

On Mon, Mar 30, 2020 at 7:19 AM Gene Heskett  wrote:

> On Monday 30 March 2020 07:34:02 andy pugh wrote:
>
> > On Sat, 28 Mar 2020 at 19:40, Sam Sokolik  wrote:
> > > You can really see the spindle res...
> > > http://electronicsam.com/images/greenmachine/IMG_20200328_140150.jpg
> >
> > Is there a motor encoder? You could try using that instead, especially
> > if it's a toothed belt drive.
>
> I highly recommend it. I have a 1000ppr on the back of my spindle motor,
> and some tally switches on the edge of the gear shift knob. So my
> operative spindle scale is something over 7k in high gear and a bit over
> 14k in low gear. That is such a fine resolution I can run the PID's
> Pgain well above 20. There is not a detectable slowdown or even working
> hard sound when the load comes on until I hear the iron in the motor
> squeaking when the Pico pwm-servo's current limit kicks in at around 17
> amps.
>
> 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)
> 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] Non-circular boring. Linuxcnc style.

[Gene Heskett]

On Monday 30 March 2020 07:34:02 andy pugh wrote:

> On Sat, 28 Mar 2020 at 19:40, Sam Sokolik  wrote:
> > You can really see the spindle res...
> > http://electronicsam.com/images/greenmachine/IMG_20200328_140150.jpg
>
> Is there a motor encoder? You could try using that instead, especially
> if it's a toothed belt drive.

I highly recommend it. I have a 1000ppr on the back of my spindle motor, 
and some tally switches on the edge of the gear shift knob. So my 
operative spindle scale is something over 7k in high gear and a bit over 
14k in low gear. That is such a fine resolution I can run the PID's 
Pgain well above 20. There is not a detectable slowdown or even working 
hard sound when the load comes on until I hear the iron in the motor 
squeaking when the Pico pwm-servo's current limit kicks in at around 17 
amps.

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)
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] Non-circular boring. Linuxcnc style.

[andy pugh]

On Sat, 28 Mar 2020 at 19:40, Sam Sokolik  wrote:

> You can really see the spindle res...
> http://electronicsam.com/images/greenmachine/IMG_20200328_140150.jpg

Is there a motor encoder? You could try using that instead, especially
if it's a toothed belt drive.

-- 
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] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Really must get after putting some sort of encoder on the spindle just so I can 
try that.
John


> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-28-20 1:40 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> https://youtu.be/C0Wz8vnFAQU
> 
> 
> On Sat, Mar 28, 2020, 3:34 PM John Dammeyer  wrote:
> 
> > Nice!
> >
> > > -Original Message-
> > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > Sent: March-28-20 12:37 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >
> > > Aluminum!
> > > http://electronicsam.com/images/greenmachine/IMG_20200328_133410.jpg
> > >
> > > http://electronicsam.com/images/greenmachine/IMG_20200328_133433.jpg
> > >
> > > You can really see the spindle res...
> > >
> > > http://electronicsam.com/images/greenmachine/IMG_20200328_140150.jpg
> > >
> > > On Sun, Mar 15, 2020, 7:28 PM Sam Sokolik  wrote:
> > >
> > > > don't look at it too close...  :)
> > > >
> > > > On Sun, Mar 15, 2020 at 5:38 PM John Dammeyer 
> > > > wrote:
> > > >
> > > >> Cool.  I'll study it tonight and see if I can figure out what you are
> > > >> doing.
> > > >> Thanks.
> > > >> John
> > > >>
> > > >>
> > > >> > -Original Message-
> > > >> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > >> > Sent: March-15-20 3:24 PM
> > > >> > To: Enhanced Machine Controller (EMC)
> > > >> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > >> >
> > > >> > I made a hal component that uses either eoffset functionality or
> > using
> > > >> an
> > > >> > offset component in hal.  It takes the spindle position and
> > dynamically
> > > >> > move the axis to create a polygon..  (and remember - a polygon of a
> > > >> large
> > > >> > number of sides is a circle..)
> > > >> >
> > > >> > The comp is only lightly tested.
> > > >> >
> > > >> >
> > > >> >
> > > >> > On Sun, Mar 15, 2020 at 2:56 PM John Dammeyer
> > > >> > 
> > > >> > wrote:
> > > >> >
> > > >> > > Cool.  Did I miss a post on how you actually do this?
> > > >> > >
> > > >> > > > -Original Message-
> > > >> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > >> > > > Sent: March-15-20 12:39 PM
> > > >> > > > To: Enhanced Machine Controller (EMC)
> > > >> > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > >> > > >
> > > >> > > > another high quality video
> > > >> > > >
> > > >> > > > https://youtu.be/LWLcFdObLvA
> > > >> > > >
> > > >> > > > On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
> > > >> > > > nicklas.karlsso...@gmail.com> wrote:
> > > >> > > >
> > > >> > > > > Hex hole is rather useful for nuts.
> > > >> > > > >
> > > >> > > > > > video coming...  :)  one gcode program - chamfer, hex and
> > hole
> > > >> all
> > > >> > > > > > poly-bored..
> > > >> > > > > >  h
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > >
> > > >> > > > > > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik <
> > samco...@gmail.com>
> > > >> > > > wrote:
> > > >> > > > > >
> > > >> > > > > > > playing with being able to 'gear?' the x axis to the
> > radius
> > > >> of the
> > > >> > > > > polygon.
> > > >> > > > > > >
> > > >> > > > > > > \
> > > >> > > > > > >
> > > >

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

https://youtu.be/C0Wz8vnFAQU


On Sat, Mar 28, 2020, 3:34 PM John Dammeyer  wrote:

> Nice!
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-28-20 12:37 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > Aluminum!
> > http://electronicsam.com/images/greenmachine/IMG_20200328_133410.jpg
> >
> > http://electronicsam.com/images/greenmachine/IMG_20200328_133433.jpg
> >
> > You can really see the spindle res...
> >
> > http://electronicsam.com/images/greenmachine/IMG_20200328_140150.jpg
> >
> > On Sun, Mar 15, 2020, 7:28 PM Sam Sokolik  wrote:
> >
> > > don't look at it too close...  :)
> > >
> > > On Sun, Mar 15, 2020 at 5:38 PM John Dammeyer 
> > > wrote:
> > >
> > >> Cool.  I'll study it tonight and see if I can figure out what you are
> > >> doing.
> > >> Thanks.
> > >> John
> > >>
> > >>
> > >> > -Original Message-
> > >> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > >> > Sent: March-15-20 3:24 PM
> > >> > To: Enhanced Machine Controller (EMC)
> > >> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >> >
> > >> > I made a hal component that uses either eoffset functionality or
> using
> > >> an
> > >> > offset component in hal.  It takes the spindle position and
> dynamically
> > >> > move the axis to create a polygon..  (and remember - a polygon of a
> > >> large
> > >> > number of sides is a circle..)
> > >> >
> > >> > The comp is only lightly tested.
> > >> >
> > >> >
> > >> >
> > >> > On Sun, Mar 15, 2020 at 2:56 PM John Dammeyer
> > >> > 
> > >> > wrote:
> > >> >
> > >> > > Cool.  Did I miss a post on how you actually do this?
> > >> > >
> > >> > > > -Original Message-
> > >> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > >> > > > Sent: March-15-20 12:39 PM
> > >> > > > To: Enhanced Machine Controller (EMC)
> > >> > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >> > > >
> > >> > > > another high quality video
> > >> > > >
> > >> > > > https://youtu.be/LWLcFdObLvA
> > >> > > >
> > >> > > > On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
> > >> > > > nicklas.karlsso...@gmail.com> wrote:
> > >> > > >
> > >> > > > > Hex hole is rather useful for nuts.
> > >> > > > >
> > >> > > > > > video coming...  :)  one gcode program - chamfer, hex and
> hole
> > >> all
> > >> > > > > > poly-bored..
> > >> > > > > >  h
> > >> > > > > >
> > >> > > > > >
> > >> > > > > >
> > >> > > > > >
> > >> > > > > > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik <
> samco...@gmail.com>
> > >> > > > wrote:
> > >> > > > > >
> > >> > > > > > > playing with being able to 'gear?' the x axis to the
> radius
> > >> of the
> > >> > > > > polygon.
> > >> > > > > > >
> > >> > > > > > > \
> > >> > > > > > >
> > >> > > > > > >
> > >> > > > > > > On Thu, Mar 12, 2020 at 11:12 AM dave engvall
> > >> > > > 
> > >> > > > > > > wrote:
> > >> > > > > > >
> > >> > > > > > >>
> > >> > > > > > >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> > >> > > > > > >> > I think you could with currently a negative tool
> > >> diameter...
> > >> > >  The
> > >> > > > > > >> problem
> > >> > > > > > >> > is - the axis keeping up.  The spindle would have to
> move
> > >> > > slower.
>

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Nice!

> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-28-20 12:37 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> Aluminum!
> http://electronicsam.com/images/greenmachine/IMG_20200328_133410.jpg
> 
> http://electronicsam.com/images/greenmachine/IMG_20200328_133433.jpg
> 
> You can really see the spindle res...
> 
> http://electronicsam.com/images/greenmachine/IMG_20200328_140150.jpg
> 
> On Sun, Mar 15, 2020, 7:28 PM Sam Sokolik  wrote:
> 
> > don't look at it too close...  :)
> >
> > On Sun, Mar 15, 2020 at 5:38 PM John Dammeyer 
> > wrote:
> >
> >> Cool.  I'll study it tonight and see if I can figure out what you are
> >> doing.
> >> Thanks.
> >> John
> >>
> >>
> >> > -Original Message-
> >> > From: Sam Sokolik [mailto:samco...@gmail.com]
> >> > Sent: March-15-20 3:24 PM
> >> > To: Enhanced Machine Controller (EMC)
> >> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >> >
> >> > I made a hal component that uses either eoffset functionality or using
> >> an
> >> > offset component in hal.  It takes the spindle position and dynamically
> >> > move the axis to create a polygon..  (and remember - a polygon of a
> >> large
> >> > number of sides is a circle..)
> >> >
> >> > The comp is only lightly tested.
> >> >
> >> >
> >> >
> >> > On Sun, Mar 15, 2020 at 2:56 PM John Dammeyer
> >> > 
> >> > wrote:
> >> >
> >> > > Cool.  Did I miss a post on how you actually do this?
> >> > >
> >> > > > -Original Message-
> >> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> >> > > > Sent: March-15-20 12:39 PM
> >> > > > To: Enhanced Machine Controller (EMC)
> >> > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >> > > >
> >> > > > another high quality video
> >> > > >
> >> > > > https://youtu.be/LWLcFdObLvA
> >> > > >
> >> > > > On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
> >> > > > nicklas.karlsso...@gmail.com> wrote:
> >> > > >
> >> > > > > Hex hole is rather useful for nuts.
> >> > > > >
> >> > > > > > video coming...  :)  one gcode program - chamfer, hex and hole
> >> all
> >> > > > > > poly-bored..
> >> > > > > >  h
> >> > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik 
> >> > > > wrote:
> >> > > > > >
> >> > > > > > > playing with being able to 'gear?' the x axis to the radius
> >> of the
> >> > > > > polygon.
> >> > > > > > >
> >> > > > > > > \
> >> > > > > > >
> >> > > > > > >
> >> > > > > > > On Thu, Mar 12, 2020 at 11:12 AM dave engvall
> >> > > > 
> >> > > > > > > wrote:
> >> > > > > > >
> >> > > > > > >>
> >> > > > > > >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> >> > > > > > >> > I think you could with currently a negative tool
> >> diameter...
> >> > >  The
> >> > > > > > >> problem
> >> > > > > > >> > is - the axis keeping up.  The spindle would have to move
> >> > > slower.
> >> > > > > > >> >
> >> > > > > > >> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
> >> > > > > > >> >
> >> > > > > > >> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> >> > > > > > >> >>> Yes - and it really isn't that great.  the cutter edge
> >> isn't
> >> > > on
> >> > > > > the
> >> > > > > > >> >>

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Aluminum!
http://electronicsam.com/images/greenmachine/IMG_20200328_133410.jpg

http://electronicsam.com/images/greenmachine/IMG_20200328_133433.jpg

You can really see the spindle res...

http://electronicsam.com/images/greenmachine/IMG_20200328_140150.jpg

On Sun, Mar 15, 2020, 7:28 PM Sam Sokolik  wrote:

> don't look at it too close...  :)
>
> On Sun, Mar 15, 2020 at 5:38 PM John Dammeyer 
> wrote:
>
>> Cool.  I'll study it tonight and see if I can figure out what you are
>> doing.
>> Thanks.
>> John
>>
>>
>> > -Original Message-
>> > From: Sam Sokolik [mailto:samco...@gmail.com]
>> > Sent: March-15-20 3:24 PM
>> > To: Enhanced Machine Controller (EMC)
>> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
>> >
>> > I made a hal component that uses either eoffset functionality or using
>> an
>> > offset component in hal.  It takes the spindle position and dynamically
>> > move the axis to create a polygon..  (and remember - a polygon of a
>> large
>> > number of sides is a circle..)
>> >
>> > The comp is only lightly tested.
>> >
>> >
>> >
>> > On Sun, Mar 15, 2020 at 2:56 PM John Dammeyer
>> > 
>> > wrote:
>> >
>> > > Cool.  Did I miss a post on how you actually do this?
>> > >
>> > > > -Original Message-
>> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
>> > > > Sent: March-15-20 12:39 PM
>> > > > To: Enhanced Machine Controller (EMC)
>> > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
>> > > >
>> > > > another high quality video
>> > > >
>> > > > https://youtu.be/LWLcFdObLvA
>> > > >
>> > > > On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
>> > > > nicklas.karlsso...@gmail.com> wrote:
>> > > >
>> > > > > Hex hole is rather useful for nuts.
>> > > > >
>> > > > > > video coming...  :)  one gcode program - chamfer, hex and hole
>> all
>> > > > > > poly-bored..
>> > > > > >  h
>> > > > > >
>> > > > > >
>> > > > > >
>> > > > > >
>> > > > > > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik 
>> > > > wrote:
>> > > > > >
>> > > > > > > playing with being able to 'gear?' the x axis to the radius
>> of the
>> > > > > polygon.
>> > > > > > >
>> > > > > > > \
>> > > > > > >
>> > > > > > >
>> > > > > > > On Thu, Mar 12, 2020 at 11:12 AM dave engvall
>> > > > 
>> > > > > > > wrote:
>> > > > > > >
>> > > > > > >>
>> > > > > > >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
>> > > > > > >> > I think you could with currently a negative tool
>> diameter...
>> > >  The
>> > > > > > >> problem
>> > > > > > >> > is - the axis keeping up.  The spindle would have to move
>> > > slower.
>> > > > > > >> >
>> > > > > > >> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
>> > > > > > >> >
>> > > > > > >> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
>> > > > > > >> >>> Yes - and it really isn't that great.  the cutter edge
>> isn't
>> > > on
>> > > > > the
>> > > > > > >> >> center
>> > > > > > >> >>> line of the spindle..  I had to tweek the angle of the
>> tool so
>> > > > > that it
>> > > > > > >> >> cut
>> > > > > > >> >>> the hex in the right orientation.  I am actually
>> surprised it
>> > > > > worked
>> > > > > > >> as
>> > > > > > >> >>> well as it did.
>> > > > > > >> >>>
>> > > > > > >> >>> (or who knows - maybe it is why it did work as well as it
>> > > did. :)
>> > > > > )
>> > > > > > >> >>>
>> > > >

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

don't look at it too close...  :)

On Sun, Mar 15, 2020 at 5:38 PM John Dammeyer 
wrote:

> Cool.  I'll study it tonight and see if I can figure out what you are
> doing.
> Thanks.
> John
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-15-20 3:24 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > I made a hal component that uses either eoffset functionality or using an
> > offset component in hal.  It takes the spindle position and dynamically
> > move the axis to create a polygon..  (and remember - a polygon of a large
> > number of sides is a circle..)
> >
> > The comp is only lightly tested.
> >
> >
> >
> > On Sun, Mar 15, 2020 at 2:56 PM John Dammeyer
> > 
> > wrote:
> >
> > > Cool.  Did I miss a post on how you actually do this?
> > >
> > > > -Original Message-----
> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > Sent: March-15-20 12:39 PM
> > > > To: Enhanced Machine Controller (EMC)
> > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > >
> > > > another high quality video
> > > >
> > > > https://youtu.be/LWLcFdObLvA
> > > >
> > > > On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
> > > > nicklas.karlsso...@gmail.com> wrote:
> > > >
> > > > > Hex hole is rather useful for nuts.
> > > > >
> > > > > > video coming...  :)  one gcode program - chamfer, hex and hole
> all
> > > > > > poly-bored..
> > > > > >  h
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik 
> > > > wrote:
> > > > > >
> > > > > > > playing with being able to 'gear?' the x axis to the radius of
> the
> > > > > polygon.
> > > > > > >
> > > > > > > \
> > > > > > >
> > > > > > >
> > > > > > > On Thu, Mar 12, 2020 at 11:12 AM dave engvall
> > > > 
> > > > > > > wrote:
> > > > > > >
> > > > > > >>
> > > > > > >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> > > > > > >> > I think you could with currently a negative tool diameter...
> > >  The
> > > > > > >> problem
> > > > > > >> > is - the axis keeping up.  The spindle would have to move
> > > slower.
> > > > > > >> >
> > > > > > >> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
> > > > > > >> >
> > > > > > >> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> > > > > > >> >>> Yes - and it really isn't that great.  the cutter edge
> isn't
> > > on
> > > > > the
> > > > > > >> >> center
> > > > > > >> >>> line of the spindle..  I had to tweek the angle of the
> tool so
> > > > > that it
> > > > > > >> >> cut
> > > > > > >> >>> the hex in the right orientation.  I am actually
> surprised it
> > > > > worked
> > > > > > >> as
> > > > > > >> >>> well as it did.
> > > > > > >> >>>
> > > > > > >> >>> (or who knows - maybe it is why it did work as well as it
> > > did. :)
> > > > > )
> > > > > > >> >>>
> > > > > > >> >>> I hope to find or sharpen a decent tool to try andy's
> tapered
> > > > > polygon
> > > > > > >> >> this
> > > > > > >> >>> weekend.  (I also think I could thread it... why?  no
> clue.
> > > But
> > > > > why
> > > > > > >> stop
> > > > > > >> >>> now..)
> > > > > > >> >>>
> > > > > > >> >>> sam
> > > > > > >> >>
> > > > > > >> >> Pretty neat Sam!
> > > > > > >> >>
> > > &g

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Cool.  I'll study it tonight and see if I can figure out what you are doing.  
Thanks.
John


> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-15-20 3:24 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> I made a hal component that uses either eoffset functionality or using an
> offset component in hal.  It takes the spindle position and dynamically
> move the axis to create a polygon..  (and remember - a polygon of a large
> number of sides is a circle..)
> 
> The comp is only lightly tested.
> 
> 
> 
> On Sun, Mar 15, 2020 at 2:56 PM John Dammeyer
> 
> wrote:
> 
> > Cool.  Did I miss a post on how you actually do this?
> >
> > > -Original Message-
> > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > Sent: March-15-20 12:39 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >
> > > another high quality video
> > >
> > > https://youtu.be/LWLcFdObLvA
> > >
> > > On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
> > > nicklas.karlsso...@gmail.com> wrote:
> > >
> > > > Hex hole is rather useful for nuts.
> > > >
> > > > > video coming...  :)  one gcode program - chamfer, hex and hole all
> > > > > poly-bored..
> > > > >  h
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik 
> > > wrote:
> > > > >
> > > > > > playing with being able to 'gear?' the x axis to the radius of the
> > > > polygon.
> > > > > >
> > > > > > \
> > > > > >
> > > > > >
> > > > > > On Thu, Mar 12, 2020 at 11:12 AM dave engvall
> > > 
> > > > > > wrote:
> > > > > >
> > > > > >>
> > > > > >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> > > > > >> > I think you could with currently a negative tool diameter...
> >  The
> > > > > >> problem
> > > > > >> > is - the axis keeping up.  The spindle would have to move
> > slower.
> > > > > >> >
> > > > > >> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
> > > > > >> >
> > > > > >> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> > > > > >> >>> Yes - and it really isn't that great.  the cutter edge isn't
> > on
> > > > the
> > > > > >> >> center
> > > > > >> >>> line of the spindle..  I had to tweek the angle of the tool so
> > > > that it
> > > > > >> >> cut
> > > > > >> >>> the hex in the right orientation.  I am actually surprised it
> > > > worked
> > > > > >> as
> > > > > >> >>> well as it did.
> > > > > >> >>>
> > > > > >> >>> (or who knows - maybe it is why it did work as well as it
> > did. :)
> > > > )
> > > > > >> >>>
> > > > > >> >>> I hope to find or sharpen a decent tool to try andy's tapered
> > > > polygon
> > > > > >> >> this
> > > > > >> >>> weekend.  (I also think I could thread it... why?  no clue.
> > But
> > > > why
> > > > > >> stop
> > > > > >> >>> now..)
> > > > > >> >>>
> > > > > >> >>> sam
> > > > > >> >>
> > > > > >> >> Pretty neat Sam!
> > > > > >> >>
> > > > > >> >>
> > > > > >> >> Now for your next test do the double hex on an OD.
> > > > > >> >>
> > > > > >> >>
> > > > > >> >> Ed.;-)
> > > > > >> >>
> > > > > >> >>
> > > > > >> >> Get the bugs worked out and then try something in steel. :-)
> > > > Probbly
> > > > > >> using a roughing routine first to remove the bulk of the material.
> > > > Still
> > > > > >> pretty fancy stuff.
> > > > > >> Dave
> > > > > >> >>
> > > > > >> >> ___
> > > > > >> >> 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
> > > >
> > >
> > > ___
> > > 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
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

I made a hal component that uses either eoffset functionality or using an
offset component in hal.  It takes the spindle position and dynamically
move the axis to create a polygon..  (and remember - a polygon of a large
number of sides is a circle..)

The comp is only lightly tested.



On Sun, Mar 15, 2020 at 2:56 PM John Dammeyer 
wrote:

> Cool.  Did I miss a post on how you actually do this?
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-15-20 12:39 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > another high quality video
> >
> > https://youtu.be/LWLcFdObLvA
> >
> > On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
> > nicklas.karlsso...@gmail.com> wrote:
> >
> > > Hex hole is rather useful for nuts.
> > >
> > > > video coming...  :)  one gcode program - chamfer, hex and hole all
> > > > poly-bored..
> > > >  h
> > > >
> > > >
> > > >
> > > >
> > > > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik 
> > wrote:
> > > >
> > > > > playing with being able to 'gear?' the x axis to the radius of the
> > > polygon.
> > > > >
> > > > > \
> > > > >
> > > > >
> > > > > On Thu, Mar 12, 2020 at 11:12 AM dave engvall
> > 
> > > > > wrote:
> > > > >
> > > > >>
> > > > >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> > > > >> > I think you could with currently a negative tool diameter...
>  The
> > > > >> problem
> > > > >> > is - the axis keeping up.  The spindle would have to move
> slower.
> > > > >> >
> > > > >> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
> > > > >> >
> > > > >> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> > > > >> >>> Yes - and it really isn't that great.  the cutter edge isn't
> on
> > > the
> > > > >> >> center
> > > > >> >>> line of the spindle..  I had to tweek the angle of the tool so
> > > that it
> > > > >> >> cut
> > > > >> >>> the hex in the right orientation.  I am actually surprised it
> > > worked
> > > > >> as
> > > > >> >>> well as it did.
> > > > >> >>>
> > > > >> >>> (or who knows - maybe it is why it did work as well as it
> did. :)
> > > )
> > > > >> >>>
> > > > >> >>> I hope to find or sharpen a decent tool to try andy's tapered
> > > polygon
> > > > >> >> this
> > > > >> >>> weekend.  (I also think I could thread it... why?  no clue.
> But
> > > why
> > > > >> stop
> > > > >> >>> now..)
> > > > >> >>>
> > > > >> >>> sam
> > > > >> >>
> > > > >> >> Pretty neat Sam!
> > > > >> >>
> > > > >> >>
> > > > >> >> Now for your next test do the double hex on an OD.
> > > > >> >>
> > > > >> >>
> > > > >> >> Ed.;-)
> > > > >> >>
> > > > >> >>
> > > > >> >> Get the bugs worked out and then try something in steel. :-)
> > > Probbly
> > > > >> using a roughing routine first to remove the bulk of the material.
> > > Still
> > > > >> pretty fancy stuff.
> > > > >> Dave
> > > > >> >>
> > > > >> >> ___
> > > > >> >> 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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polygon.comp
Description: Binary data
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Cool.  Did I miss a post on how you actually do this?

> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-15-20 12:39 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> another high quality video
> 
> https://youtu.be/LWLcFdObLvA
> 
> On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
> nicklas.karlsso...@gmail.com> wrote:
> 
> > Hex hole is rather useful for nuts.
> >
> > > video coming...  :)  one gcode program - chamfer, hex and hole all
> > > poly-bored..
> > >  h
> > >
> > >
> > >
> > >
> > > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik 
> wrote:
> > >
> > > > playing with being able to 'gear?' the x axis to the radius of the
> > polygon.
> > > >
> > > > \
> > > >
> > > >
> > > > On Thu, Mar 12, 2020 at 11:12 AM dave engvall
> 
> > > > wrote:
> > > >
> > > >>
> > > >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> > > >> > I think you could with currently a negative tool diameter...   The
> > > >> problem
> > > >> > is - the axis keeping up.  The spindle would have to move slower.
> > > >> >
> > > >> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
> > > >> >
> > > >> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> > > >> >>> Yes - and it really isn't that great.  the cutter edge isn't on
> > the
> > > >> >> center
> > > >> >>> line of the spindle..  I had to tweek the angle of the tool so
> > that it
> > > >> >> cut
> > > >> >>> the hex in the right orientation.  I am actually surprised it
> > worked
> > > >> as
> > > >> >>> well as it did.
> > > >> >>>
> > > >> >>> (or who knows - maybe it is why it did work as well as it did. :)
> > )
> > > >> >>>
> > > >> >>> I hope to find or sharpen a decent tool to try andy's tapered
> > polygon
> > > >> >> this
> > > >> >>> weekend.  (I also think I could thread it... why?  no clue.  But
> > why
> > > >> stop
> > > >> >>> now..)
> > > >> >>>
> > > >> >>> sam
> > > >> >>
> > > >> >> Pretty neat Sam!
> > > >> >>
> > > >> >>
> > > >> >> Now for your next test do the double hex on an OD.
> > > >> >>
> > > >> >>
> > > >> >> Ed.;-)
> > > >> >>
> > > >> >>
> > > >> >> Get the bugs worked out and then try something in steel. :-)
> > Probbly
> > > >> using a roughing routine first to remove the bulk of the material.
> > Still
> > > >> pretty fancy stuff.
> > > >> Dave
> > > >> >>
> > > >> >> ___
> > > >> >> 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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> 
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

another high quality video

https://youtu.be/LWLcFdObLvA

On Sun, Mar 15, 2020 at 1:57 PM Nicklas Karlsson <
nicklas.karlsso...@gmail.com> wrote:

> Hex hole is rather useful for nuts.
>
> > video coming...  :)  one gcode program - chamfer, hex and hole all
> > poly-bored..
> >  h
> >
> >
> >
> >
> > On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik  wrote:
> >
> > > playing with being able to 'gear?' the x axis to the radius of the
> polygon.
> > >
> > > \
> > >
> > >
> > > On Thu, Mar 12, 2020 at 11:12 AM dave engvall 
> > > wrote:
> > >
> > >>
> > >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> > >> > I think you could with currently a negative tool diameter...   The
> > >> problem
> > >> > is - the axis keeping up.  The spindle would have to move slower.
> > >> >
> > >> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
> > >> >
> > >> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> > >> >>> Yes - and it really isn't that great.  the cutter edge isn't on
> the
> > >> >> center
> > >> >>> line of the spindle..  I had to tweek the angle of the tool so
> that it
> > >> >> cut
> > >> >>> the hex in the right orientation.  I am actually surprised it
> worked
> > >> as
> > >> >>> well as it did.
> > >> >>>
> > >> >>> (or who knows - maybe it is why it did work as well as it did. :)
> )
> > >> >>>
> > >> >>> I hope to find or sharpen a decent tool to try andy's tapered
> polygon
> > >> >> this
> > >> >>> weekend.  (I also think I could thread it... why?  no clue.  But
> why
> > >> stop
> > >> >>> now..)
> > >> >>>
> > >> >>> sam
> > >> >>
> > >> >> Pretty neat Sam!
> > >> >>
> > >> >>
> > >> >> Now for your next test do the double hex on an OD.
> > >> >>
> > >> >>
> > >> >> Ed.;-)
> > >> >>
> > >> >>
> > >> >> Get the bugs worked out and then try something in steel. :-)
> Probbly
> > >> using a roughing routine first to remove the bulk of the material.
> Still
> > >> pretty fancy stuff.
> > >> Dave
> > >> >>
> > >> >> ___
> > >> >> 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] Non-circular boring. Linuxcnc style.

[Nicklas Karlsson]

Hex hole is rather useful for nuts.

> video coming...  :)  one gcode program - chamfer, hex and hole all
> poly-bored..
>  h
> 
> 
> 
> 
> On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik  wrote:
> 
> > playing with being able to 'gear?' the x axis to the radius of the polygon.
> >
> > \
> >
> >
> > On Thu, Mar 12, 2020 at 11:12 AM dave engvall 
> > wrote:
> >
> >>
> >> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> >> > I think you could with currently a negative tool diameter...   The
> >> problem
> >> > is - the axis keeping up.  The spindle would have to move slower.
> >> >
> >> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
> >> >
> >> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> >> >>> Yes - and it really isn't that great.  the cutter edge isn't on the
> >> >> center
> >> >>> line of the spindle..  I had to tweek the angle of the tool so that it
> >> >> cut
> >> >>> the hex in the right orientation.  I am actually surprised it worked
> >> as
> >> >>> well as it did.
> >> >>>
> >> >>> (or who knows - maybe it is why it did work as well as it did. :) )
> >> >>>
> >> >>> I hope to find or sharpen a decent tool to try andy's tapered polygon
> >> >> this
> >> >>> weekend.  (I also think I could thread it... why?  no clue.  But why
> >> stop
> >> >>> now..)
> >> >>>
> >> >>> sam
> >> >>
> >> >> Pretty neat Sam!
> >> >>
> >> >>
> >> >> Now for your next test do the double hex on an OD.
> >> >>
> >> >>
> >> >> Ed.;-)
> >> >>
> >> >>
> >> >> Get the bugs worked out and then try something in steel. :-) Probbly
> >> using a roughing routine first to remove the bulk of the material. Still
> >> pretty fancy stuff.
> >> Dave
> >> >>
> >> >> ___
> >> >> 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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

video coming...  :)  one gcode program - chamfer, hex and hole all
poly-bored..
 h




On Sat, Mar 14, 2020, 6:47 PM Sam Sokolik  wrote:

> playing with being able to 'gear?' the x axis to the radius of the polygon.
>
> \
>
>
> On Thu, Mar 12, 2020 at 11:12 AM dave engvall 
> wrote:
>
>>
>> On 3/12/20 8:53 AM, Sam Sokolik wrote:
>> > I think you could with currently a negative tool diameter...   The
>> problem
>> > is - the axis keeping up.  The spindle would have to move slower.
>> >
>> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
>> >
>> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
>> >>> Yes - and it really isn't that great.  the cutter edge isn't on the
>> >> center
>> >>> line of the spindle..  I had to tweek the angle of the tool so that it
>> >> cut
>> >>> the hex in the right orientation.  I am actually surprised it worked
>> as
>> >>> well as it did.
>> >>>
>> >>> (or who knows - maybe it is why it did work as well as it did. :) )
>> >>>
>> >>> I hope to find or sharpen a decent tool to try andy's tapered polygon
>> >> this
>> >>> weekend.  (I also think I could thread it... why?  no clue.  But why
>> stop
>> >>> now..)
>> >>>
>> >>> sam
>> >>
>> >> Pretty neat Sam!
>> >>
>> >>
>> >> Now for your next test do the double hex on an OD.
>> >>
>> >>
>> >> Ed.;-)
>> >>
>> >>
>> >> Get the bugs worked out and then try something in steel. :-) Probbly
>> using a roughing routine first to remove the bulk of the material. Still
>> pretty fancy stuff.
>> Dave
>> >>
>> >> ___
>> >> 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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

playing with being able to 'gear?' the x axis to the radius of the polygon.

\


On Thu, Mar 12, 2020 at 11:12 AM dave engvall  wrote:

>
> On 3/12/20 8:53 AM, Sam Sokolik wrote:
> > I think you could with currently a negative tool diameter...   The
> problem
> > is - the axis keeping up.  The spindle would have to move slower.
> >
> > On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:
> >
> >> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> >>> Yes - and it really isn't that great.  the cutter edge isn't on the
> >> center
> >>> line of the spindle..  I had to tweek the angle of the tool so that it
> >> cut
> >>> the hex in the right orientation.  I am actually surprised it worked as
> >>> well as it did.
> >>>
> >>> (or who knows - maybe it is why it did work as well as it did. :) )
> >>>
> >>> I hope to find or sharpen a decent tool to try andy's tapered polygon
> >> this
> >>> weekend.  (I also think I could thread it... why?  no clue.  But why
> stop
> >>> now..)
> >>>
> >>> sam
> >>
> >> Pretty neat Sam!
> >>
> >>
> >> Now for your next test do the double hex on an OD.
> >>
> >>
> >> Ed.;-)
> >>
> >>
> >> Get the bugs worked out and then try something in steel. :-) Probbly
> using a roughing routine first to remove the bulk of the material. Still
> pretty fancy stuff.
> Dave
> >>
> >> ___
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

I think you could with currently a negative tool diameter...   The problem
is - the axis keeping up.  The spindle would have to move slower.

On Thu, Mar 12, 2020, 10:25 AM Ed  wrote:

> On 3/12/20 10:03 AM, Sam Sokolik wrote:
> > Yes - and it really isn't that great.  the cutter edge isn't on the
> center
> > line of the spindle..  I had to tweek the angle of the tool so that it
> cut
> > the hex in the right orientation.  I am actually surprised it worked as
> > well as it did.
> >
> > (or who knows - maybe it is why it did work as well as it did. :) )
> >
> > I hope to find or sharpen a decent tool to try andy's tapered polygon
> this
> > weekend.  (I also think I could thread it... why?  no clue.  But why stop
> > now..)
> >
> > sam
>
>
> Pretty neat Sam!
>
>
> Now for your next test do the double hex on an OD.
>
>
> Ed.;-)
>
>
>
>
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Ed]

On 3/12/20 10:03 AM, Sam Sokolik wrote:

Yes - and it really isn't that great.  the cutter edge isn't on the center
line of the spindle..  I had to tweek the angle of the tool so that it cut
the hex in the right orientation.  I am actually surprised it worked as
well as it did.

(or who knows - maybe it is why it did work as well as it did. :) )

I hope to find or sharpen a decent tool to try andy's tapered polygon this
weekend.  (I also think I could thread it... why?  no clue.  But why stop
now..)

sam



Pretty neat Sam!


Now for your next test do the double hex on an OD.


Ed.    ;-)




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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

what is also cool - it is self regulating..  As the spindle slows down -
the tool path slows down.

On Thu, Mar 12, 2020 at 10:03 AM Sam Sokolik  wrote:

> Yes - and it really isn't that great.  the cutter edge isn't on the center
> line of the spindle..  I had to tweek the angle of the tool so that it cut
> the hex in the right orientation.  I am actually surprised it worked as
> well as it did.
>
> (or who knows - maybe it is why it did work as well as it did. :) )
>
> I hope to find or sharpen a decent tool to try andy's tapered polygon this
> weekend.  (I also think I could thread it... why?  no clue.  But why stop
> now..)
>
> sam
>
> On Thu, Mar 12, 2020 at 9:57 AM Gene Heskett  wrote:
>
>> On Thursday 12 March 2020 10:26:35 Sam Sokolik wrote:
>>
>> > Now with rotatable polygon..  (this is 2 runs - with one hex rotated
>> > 30 degrees)
>> >
>> > http://electronicsam.com/images/greenmachine/IMG_20200311_173730.jpg
>>
>> Neat Sam.  And these are done by just chucking a boring bar from a $20
>> kit? Sharpened of course?
>> >
>> > On Wed, Mar 11, 2020 at 8:20 AM Sam Sokolik  wrote:
>> > > Oh!  Duh.  Yes.  I think that would work pretty easy.  Yes - you can
>> > > change the radius on the fly.
>> > >
>> > > On Wed, Mar 11, 2020, 8:15 AM andy pugh  wrote:
>> > >> On Wed, 11 Mar 2020 at 11:56, Sam Sokolik 
>> wrote:
>> > >> > Andy - I not understanding what you mean.  Do you have an
>> > >> > example?  The comp outputs the radius as the spindle rotates.
>> > >> > (mainly was for testing)
>> > >>
>> > >> How do you program different hexagon sizes?
>> > >> Link that to Z position (with scaling) and you get tapered
>> > >> polygonal holes.
>> > >>
>> > >> --
>> > >> 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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>>
>>
>> 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)
>> 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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Yes - and it really isn't that great.  the cutter edge isn't on the center
line of the spindle..  I had to tweek the angle of the tool so that it cut
the hex in the right orientation.  I am actually surprised it worked as
well as it did.

(or who knows - maybe it is why it did work as well as it did. :) )

I hope to find or sharpen a decent tool to try andy's tapered polygon this
weekend.  (I also think I could thread it... why?  no clue.  But why stop
now..)

sam

On Thu, Mar 12, 2020 at 9:57 AM Gene Heskett  wrote:

> On Thursday 12 March 2020 10:26:35 Sam Sokolik wrote:
>
> > Now with rotatable polygon..  (this is 2 runs - with one hex rotated
> > 30 degrees)
> >
> > http://electronicsam.com/images/greenmachine/IMG_20200311_173730.jpg
>
> Neat Sam.  And these are done by just chucking a boring bar from a $20
> kit? Sharpened of course?
> >
> > On Wed, Mar 11, 2020 at 8:20 AM Sam Sokolik  wrote:
> > > Oh!  Duh.  Yes.  I think that would work pretty easy.  Yes - you can
> > > change the radius on the fly.
> > >
> > > On Wed, Mar 11, 2020, 8:15 AM andy pugh  wrote:
> > >> On Wed, 11 Mar 2020 at 11:56, Sam Sokolik 
> wrote:
> > >> > Andy - I not understanding what you mean.  Do you have an
> > >> > example?  The comp outputs the radius as the spindle rotates.
> > >> > (mainly was for testing)
> > >>
> > >> How do you program different hexagon sizes?
> > >> Link that to Z position (with scaling) and you get tapered
> > >> polygonal holes.
> > >>
> > >> --
> > >> 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)
> 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] Non-circular boring. Linuxcnc style.

[Gene Heskett]

On Thursday 12 March 2020 10:26:35 Sam Sokolik wrote:

> Now with rotatable polygon..  (this is 2 runs - with one hex rotated
> 30 degrees)
>
> http://electronicsam.com/images/greenmachine/IMG_20200311_173730.jpg

Neat Sam.  And these are done by just chucking a boring bar from a $20 
kit? Sharpened of course?
>
> On Wed, Mar 11, 2020 at 8:20 AM Sam Sokolik  wrote:
> > Oh!  Duh.  Yes.  I think that would work pretty easy.  Yes - you can
> > change the radius on the fly.
> >
> > On Wed, Mar 11, 2020, 8:15 AM andy pugh  wrote:
> >> On Wed, 11 Mar 2020 at 11:56, Sam Sokolik  
wrote:
> >> > Andy - I not understanding what you mean.  Do you have an
> >> > example?  The comp outputs the radius as the spindle rotates.
> >> > (mainly was for testing)
> >>
> >> How do you program different hexagon sizes?
> >> Link that to Z position (with scaling) and you get tapered
> >> polygonal holes.
> >>
> >> --
> >> 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)
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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Now with rotatable polygon..  (this is 2 runs - with one hex rotated 30
degrees)

http://electronicsam.com/images/greenmachine/IMG_20200311_173730.jpg



On Wed, Mar 11, 2020 at 8:20 AM Sam Sokolik  wrote:

> Oh!  Duh.  Yes.  I think that would work pretty easy.  Yes - you can
> change the radius on the fly.
>
> On Wed, Mar 11, 2020, 8:15 AM andy pugh  wrote:
>
>> On Wed, 11 Mar 2020 at 11:56, Sam Sokolik  wrote:
>> >
>> > Andy - I not understanding what you mean.  Do you have an example?  The
>> > comp outputs the radius as the spindle rotates. (mainly was for testing)
>>
>> How do you program different hexagon sizes?
>> Link that to Z position (with scaling) and you get tapered polygonal
>> holes.
>>
>> --
>> 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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Oh!  Duh.  Yes.  I think that would work pretty easy.  Yes - you can change
the radius on the fly.

On Wed, Mar 11, 2020, 8:15 AM andy pugh  wrote:

> On Wed, 11 Mar 2020 at 11:56, Sam Sokolik  wrote:
> >
> > Andy - I not understanding what you mean.  Do you have an example?  The
> > comp outputs the radius as the spindle rotates. (mainly was for testing)
>
> How do you program different hexagon sizes?
> Link that to Z position (with scaling) and you get tapered polygonal holes.
>
> --
> 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] Non-circular boring. Linuxcnc style.

[andy pugh]

On Wed, 11 Mar 2020 at 11:56, Sam Sokolik  wrote:
>
> Andy - I not understanding what you mean.  Do you have an example?  The
> comp outputs the radius as the spindle rotates. (mainly was for testing)

How do you program different hexagon sizes?
Link that to Z position (with scaling) and you get tapered polygonal holes.

-- 
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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Andy - I not understanding what you mean.  Do you have an example?  The
comp outputs the radius as the spindle rotates. (mainly was for testing)

On Wed, Mar 11, 2020 at 4:08 AM andy pugh  wrote:

> On Wed, 11 Mar 2020 at 02:26, Sam Sokolik  wrote:
> >
> > Painfully slow ( .1 IPM to be safe...)
>
> If the polygon radius is a variable input then you could connect it to
> Z-height and bore a tapered hexagonal hole.
>
> And that's actually a useful thing (windscreen wipers?) and really
> very hard to mill conventionally.
>
> --
> 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] Non-circular boring. Linuxcnc style.

[andy pugh]

On Wed, 11 Mar 2020 at 02:26, Sam Sokolik  wrote:
>
> Painfully slow ( .1 IPM to be safe...)

If the polygon radius is a variable input then you could connect it to
Z-height and bore a tapered hexagonal hole.

And that's actually a useful thing (windscreen wipers?) and really
very hard to mill conventionally.

-- 
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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Painfully slow ( .1 IPM to be safe...)

https://youtu.be/X1ma_TsItMk

sam

On Tue, Mar 10, 2020 at 8:07 PM Sam Sokolik  wrote:

> well - it cuts in plastic...
>
> http://electronicsam.com/images/greenmachine/IMG_20200310_190102.jpg
>
> On Mon, Mar 9, 2020 at 10:50 AM Sam Sokolik  wrote:
>
>> oh - and this is still the rpi4 + mesa 7i92
>>
>> On Mon, Mar 9, 2020 at 7:43 AM Gene Heskett  wrote:
>>
>>> On Monday 09 March 2020 05:46:50 andy pugh wrote:
>>>
>>> > On Mon, 9 Mar 2020 at 04:52, Peter C. Wallace  wrote:
>>> > > Since the spindle velocity is relatively constant it might be
>>> > > possible to low pass filter the spindle position and make the xy
>>> > > motion a bit less "crunchy"
>>> >
>>> > it might even make sense to use the software encoder module and its
>>> > "position-interp" output.
>>>
>>> See also its min-speed-estimate pin text. Because it may not work at low
>>> speeds. its something I haven't explored.  Besides with my scale being
>>> somewhat above 14,000 in low gear precision isn't something on my worry
>>> list when using the G0704. With only 240 edges, 60 teeth, on the
>>> sheldon. and even less, 200 on TLM, it could be a bit schloppy. But it
>>> does cut nice threads.
>>>
>>> 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)
>>> If we desire respect for the law, we must first make the law respectable.
>>>  - Louis D. Brandeis
>>> Genes Web page 
>>>
>>>
>>> ___
>>> Emc-users mailing list
>>> Emc-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>
>>

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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

well - it cuts in plastic...

http://electronicsam.com/images/greenmachine/IMG_20200310_190102.jpg

On Mon, Mar 9, 2020 at 10:50 AM Sam Sokolik  wrote:

> oh - and this is still the rpi4 + mesa 7i92
>
> On Mon, Mar 9, 2020 at 7:43 AM Gene Heskett  wrote:
>
>> On Monday 09 March 2020 05:46:50 andy pugh wrote:
>>
>> > On Mon, 9 Mar 2020 at 04:52, Peter C. Wallace  wrote:
>> > > Since the spindle velocity is relatively constant it might be
>> > > possible to low pass filter the spindle position and make the xy
>> > > motion a bit less "crunchy"
>> >
>> > it might even make sense to use the software encoder module and its
>> > "position-interp" output.
>>
>> See also its min-speed-estimate pin text. Because it may not work at low
>> speeds. its something I haven't explored.  Besides with my scale being
>> somewhat above 14,000 in low gear precision isn't something on my worry
>> list when using the G0704. With only 240 edges, 60 teeth, on the
>> sheldon. and even less, 200 on TLM, it could be a bit schloppy. But it
>> does cut nice threads.
>>
>> 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)
>> If we desire respect for the law, we must first make the law respectable.
>>  - Louis D. Brandeis
>> Genes Web page 
>>
>>
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

oh - and this is still the rpi4 + mesa 7i92

On Mon, Mar 9, 2020 at 7:43 AM Gene Heskett  wrote:

> On Monday 09 March 2020 05:46:50 andy pugh wrote:
>
> > On Mon, 9 Mar 2020 at 04:52, Peter C. Wallace  wrote:
> > > Since the spindle velocity is relatively constant it might be
> > > possible to low pass filter the spindle position and make the xy
> > > motion a bit less "crunchy"
> >
> > it might even make sense to use the software encoder module and its
> > "position-interp" output.
>
> See also its min-speed-estimate pin text. Because it may not work at low
> speeds. its something I haven't explored.  Besides with my scale being
> somewhat above 14,000 in low gear precision isn't something on my worry
> list when using the G0704. With only 240 edges, 60 teeth, on the
> sheldon. and even less, 200 on TLM, it could be a bit schloppy. But it
> does cut nice threads.
>
> 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)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page 
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>

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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Gene Heskett]

On Monday 09 March 2020 05:46:50 andy pugh wrote:

> On Mon, 9 Mar 2020 at 04:52, Peter C. Wallace  wrote:
> > Since the spindle velocity is relatively constant it might be
> > possible to low pass filter the spindle position and make the xy
> > motion a bit less "crunchy"
>
> it might even make sense to use the software encoder module and its
> "position-interp" output.

See also its min-speed-estimate pin text. Because it may not work at low 
speeds. its something I haven't explored.  Besides with my scale being 
somewhat above 14,000 in low gear precision isn't something on my worry 
list when using the G0704. With only 240 edges, 60 teeth, on the 
sheldon. and even less, 200 on TLM, it could be a bit schloppy. But it 
does cut nice threads.

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)
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] Non-circular boring. Linuxcnc style.

[andy pugh]

On Mon, 9 Mar 2020 at 04:52, Peter C. Wallace  wrote:

> Since the spindle velocity is relatively constant it might be possible to low
> pass filter the spindle position and make the xy motion a bit less "crunchy"

it might even make sense to use the software encoder module and its
"position-interp" output.

-- 
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] Non-circular boring. Linuxcnc style.

[Leonardo Marsaglia]

Pretty nice job Sam. I'm testing something similar while I'm finishing to
configure the machine I plan to intall in a few days on the Mazak. My goal
is to turn low lift camshafts (6.5 mm maximum for now, although 9 mm
shouldn't be a problem if the tool has enough relief).

Here's a video of a test I made a few weeks ago using lowpass filter as
Peter suggested: https://www.youtube.com/watch?v=kzokOz8uG7M

The problem I encountered with lowpass filter is that as I increased the
gain I startes loosing some lift so I'm only using a little bit to slightly
smooth the signal. In the video I'm using a 1024 CPR simulated encoder but
I only exported the cam profile with 64 control points. After that I
exported the same cam but with 512 points and the result was a lot
smoother.

Anyway, I'm still struggling with the component I made since I can't use it
with a stepper PIDed configuration without crashing the kernel. I'm using
the classic stepgen config and it seems to work ok.

El 9 mar. 2020 4:32 AM, "Gene Heskett"  escribió:

> On Monday 09 March 2020 02:16:40 John Dammeyer wrote:
>
> > Ah.  See the way I read that document is that it's
> >
> > halcmd -f -k
> >
> > and it's not clear what the '\' means.
> >
> > So I'm guessing there's something in the hal file loaded with a
> > loadrt?
> >
> > http://linuxcnc.org/docs/2.4/html/hal_tutorial.html
> > doesn't show polygon.
> >
> > It's late.  I've given up searching for now.  Frustrating to not find
> > anything online. John
> >
> > > -Original Message-
> > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > Sent: March-08-20 10:37 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >
> > > Halcmd is an interactive hal command line.   -fk just means don't
> > > exit if there is an error and use input from a file if specified -
> > > if no file is specified use keyboard (standard I/O). (I didn't
> > > specify a file)
> > >
> > > This let's you run Hal commands and see the guts of linuxcnc.  Very
> > > useful and powerful.  I use it all the time.
> > >
> > > On Mon, Mar 9, 2020, 12:18 AM John Dammeyer 
> > >
> > > wrote:
> > > > So the
> > > > http://linuxcnc.org/docs/html/man/man1/halcmd.1.html
> > > > says \-f[file]
> > > >
> > > > halcmd -fk means k is a file?
> > > >
> > > > I'm confused.
> > > > John
> > > >
> > > > > -Original Message-
> > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > Sent: March-08-20 9:44 PM
> > > > > To: Enhanced Machine Controller (EMC)
> > > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > >
> > > > > The polygon Hal component can be enabled/disabled.
> > > > >
> > > > > Here is me experimenting with parameters
> > > > >
> > > > > http://electronicsam.com/images/greenmachine/2020-03-07-
> > > > > 191256_1920x1080_scrot.png
> > > > >
> > > > >
> > > > > On Sun, Mar 8, 2020, 11:34 PM John Dammeyer
> > >
> > > 
> > >
> > > > > wrote:
> > > > > > But how is it done then?   I mean you wouldn't want X and Y
> > > > > > moving on
> > > >
> > > > you
> > > >
> > > > > > when you accidentally turn the spindle while tightening the
> > > > > > drill
> > > >
> > > > chuck.
> > > >
> > > > > > Yet it appeared your turned the tool and the XY axis moved.
> > > > > >
> > > > > > Thanks
> > > > > > john
> > > > > >
> > > > > > > -Original Message-
> > > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > > Sent: March-08-20 9:02 PM
> > > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc
> > > > > > > style.
> > > > > > >
> > > > > > > The spindle has a 36 tooth gear with quadrature gear tooth
> > > > > > > sensors.
> > > >
> > > > So
> > > >
> > > > > > only
> > > > > >
> > > > > > > 144 counts per rev.   Partly 

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Gene Heskett]

On Monday 09 March 2020 02:16:40 John Dammeyer wrote:

> Ah.  See the way I read that document is that it's
>
> halcmd -f -k
>
> and it's not clear what the '\' means.
>
> So I'm guessing there's something in the hal file loaded with a
> loadrt?
>
> http://linuxcnc.org/docs/2.4/html/hal_tutorial.html
> doesn't show polygon.
>
> It's late.  I've given up searching for now.  Frustrating to not find
> anything online. John
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-08-20 10:37 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > Halcmd is an interactive hal command line.   -fk just means don't
> > exit if there is an error and use input from a file if specified -
> > if no file is specified use keyboard (standard I/O). (I didn't
> > specify a file)
> >
> > This let's you run Hal commands and see the guts of linuxcnc.  Very
> > useful and powerful.  I use it all the time.
> >
> > On Mon, Mar 9, 2020, 12:18 AM John Dammeyer 
> >
> > wrote:
> > > So the
> > > http://linuxcnc.org/docs/html/man/man1/halcmd.1.html
> > > says \-f[file]
> > >
> > > halcmd -fk means k is a file?
> > >
> > > I'm confused.
> > > John
> > >
> > > > -Original Message-
> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > Sent: March-08-20 9:44 PM
> > > > To: Enhanced Machine Controller (EMC)
> > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > >
> > > > The polygon Hal component can be enabled/disabled.
> > > >
> > > > Here is me experimenting with parameters
> > > >
> > > > http://electronicsam.com/images/greenmachine/2020-03-07-
> > > > 191256_1920x1080_scrot.png
> > > >
> > > >
> > > > On Sun, Mar 8, 2020, 11:34 PM John Dammeyer
> >
> > 
> >
> > > > wrote:
> > > > > But how is it done then?   I mean you wouldn't want X and Y
> > > > > moving on
> > >
> > > you
> > >
> > > > > when you accidentally turn the spindle while tightening the
> > > > > drill
> > >
> > > chuck.
> > >
> > > > > Yet it appeared your turned the tool and the XY axis moved.
> > > > >
> > > > > Thanks
> > > > > john
> > > > >
> > > > > > -Original Message-
> > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > Sent: March-08-20 9:02 PM
> > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc
> > > > > > style.
> > > > > >
> > > > > > The spindle has a 36 tooth gear with quadrature gear tooth
> > > > > > sensors.
> > >
> > > So
> > >
> > > > > only
> > > > >
> > > > > > 144 counts per rev.   Partly why it is so noisy.
> > > > > >
> > > > > > On Sun, Mar 8, 2020, 10:30 PM John Dammeyer
> > > >
> > > > 
> > > >
> > > > > > wrote:
> > > > > > > Cool.
> > > > > > > How is this done?  As I recall your spindle didn't have
> > > > > > > 1000
> > >
> > > pulses per
> > >
> > > > > > > rev or anything.  Does it just calculate the current angle
> > > > > > > of the
> > > > >
> > > > > spindle
> > > > >
> > > > > > > and then send motion commands to XY?
> > > > > > > Thanks
> > > > > > > John
> > > > > > >
> > > > > > > > -Original Message-
> > > > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > > > Sent: March-08-20 8:18 PM
> > > > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc
> > > > > > > > style.
> > > > > > > >
> > > > > > > > Exactly
> > > > > > > >
> > > > > > > > On Sun, Mar 8, 2020, 10:16 PM John Dammeye

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Ah.  See the way I read that document is that it's 

halcmd -f -k  

and it's not clear what the '\' means.  

So I'm guessing there's something in the hal file loaded with a loadrt?

http://linuxcnc.org/docs/2.4/html/hal_tutorial.html
doesn't show polygon.  

It's late.  I've given up searching for now.  Frustrating to not find anything 
online.
John



> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-08-20 10:37 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> Halcmd is an interactive hal command line.   -fk just means don't exit if
> there is an error and use input from a file if specified - if no file is
> specified use keyboard (standard I/O). (I didn't specify a file)
> 
> This let's you run Hal commands and see the guts of linuxcnc.  Very useful
> and powerful.  I use it all the time.
> 
> On Mon, Mar 9, 2020, 12:18 AM John Dammeyer 
> wrote:
> 
> > So the
> > http://linuxcnc.org/docs/html/man/man1/halcmd.1.html
> > says \-f[file]
> >
> > halcmd -fk means k is a file?
> >
> > I'm confused.
> > John
> >
> >
> > > -Original Message-
> > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > Sent: March-08-20 9:44 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >
> > > The polygon Hal component can be enabled/disabled.
> > >
> > > Here is me experimenting with parameters
> > >
> > > http://electronicsam.com/images/greenmachine/2020-03-07-
> > > 191256_1920x1080_scrot.png
> > >
> > >
> > > On Sun, Mar 8, 2020, 11:34 PM John Dammeyer
> 
> > > wrote:
> > >
> > > > But how is it done then?   I mean you wouldn't want X and Y moving on
> > you
> > > > when you accidentally turn the spindle while tightening the drill
> > chuck.
> > > > Yet it appeared your turned the tool and the XY axis moved.
> > > >
> > > > Thanks
> > > > john
> > > >
> > > >
> > > > > -Original Message-
> > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > Sent: March-08-20 9:02 PM
> > > > > To: Enhanced Machine Controller (EMC)
> > > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > >
> > > > > The spindle has a 36 tooth gear with quadrature gear tooth sensors.
> > So
> > > > only
> > > > > 144 counts per rev.   Partly why it is so noisy.
> > > > >
> > > > > On Sun, Mar 8, 2020, 10:30 PM John Dammeyer
> > > 
> > > > > wrote:
> > > > >
> > > > > > Cool.
> > > > > > How is this done?  As I recall your spindle didn't have 1000
> > pulses per
> > > > > > rev or anything.  Does it just calculate the current angle of the
> > > > spindle
> > > > > > and then send motion commands to XY?
> > > > > > Thanks
> > > > > > John
> > > > > >
> > > > > >
> > > > > > > -Original Message-
> > > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > > Sent: March-08-20 8:18 PM
> > > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > > > >
> > > > > > > Exactly
> > > > > > >
> > > > > > > On Sun, Mar 8, 2020, 10:16 PM John Dammeyer
> > > > > 
> > > > > > > wrote:
> > > > > > >
> > > > > > > > So was it using the spindle position as you turned it manually
> > to
> > > > move
> > > > > > X
> > > > > > > > and Y?
> > > > > > > > John
> > > > > > > >
> > > > > > > >
> > > > > > > > > -Original Message-
> > > > > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > > > > Sent: March-08-20 7:09 PM
> > > > > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > > > > Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > > > > &g

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Halcmd is an interactive hal command line.   -fk just means don't exit if
there is an error and use input from a file if specified - if no file is
specified use keyboard (standard I/O). (I didn't specify a file)

This let's you run Hal commands and see the guts of linuxcnc.  Very useful
and powerful.  I use it all the time.

On Mon, Mar 9, 2020, 12:18 AM John Dammeyer  wrote:

> So the
> http://linuxcnc.org/docs/html/man/man1/halcmd.1.html
> says \-f[file]
>
> halcmd -fk means k is a file?
>
> I'm confused.
> John
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-08-20 9:44 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > The polygon Hal component can be enabled/disabled.
> >
> > Here is me experimenting with parameters
> >
> > http://electronicsam.com/images/greenmachine/2020-03-07-
> > 191256_1920x1080_scrot.png
> >
> >
> > On Sun, Mar 8, 2020, 11:34 PM John Dammeyer 
> > wrote:
> >
> > > But how is it done then?   I mean you wouldn't want X and Y moving on
> you
> > > when you accidentally turn the spindle while tightening the drill
> chuck.
> > > Yet it appeared your turned the tool and the XY axis moved.
> > >
> > > Thanks
> > > john
> > >
> > >
> > > > -----Original Message-
> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > Sent: March-08-20 9:02 PM
> > > > To: Enhanced Machine Controller (EMC)
> > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > >
> > > > The spindle has a 36 tooth gear with quadrature gear tooth sensors.
> So
> > > only
> > > > 144 counts per rev.   Partly why it is so noisy.
> > > >
> > > > On Sun, Mar 8, 2020, 10:30 PM John Dammeyer
> > 
> > > > wrote:
> > > >
> > > > > Cool.
> > > > > How is this done?  As I recall your spindle didn't have 1000
> pulses per
> > > > > rev or anything.  Does it just calculate the current angle of the
> > > spindle
> > > > > and then send motion commands to XY?
> > > > > Thanks
> > > > > John
> > > > >
> > > > >
> > > > > > -Original Message-
> > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > Sent: March-08-20 8:18 PM
> > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > > >
> > > > > > Exactly
> > > > > >
> > > > > > On Sun, Mar 8, 2020, 10:16 PM John Dammeyer
> > > > 
> > > > > > wrote:
> > > > > >
> > > > > > > So was it using the spindle position as you turned it manually
> to
> > > move
> > > > > X
> > > > > > > and Y?
> > > > > > > John
> > > > > > >
> > > > > > >
> > > > > > > > -Original Message-
> > > > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > > > Sent: March-08-20 7:09 PM
> > > > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > > > Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > > > > >
> > > > > > > > Using eoffset functionality - I created a small hal component
> > > that
> > > > > > > > calculates a polygon based on the tool orientation - moving x
> > > and y
> > > > > > > > accordingly..  It is based on work that andy did on his
> lathe.
> > > > > > > >
> > > > > > > > You enter tool radius, number of sides, inscribed radius of
> the
> > > > > polygon.
> > > > > > > > (still a work in progress - I don't have a way a easy to set
> the
> > > > > tool or
> > > > > > > > polygon orientation.)
> > > > > > > >
> > > > > > > > based on this formula
> > > > > > > > https://math.stackexchange.com/a/41954
> > > > > > > >
> > > > > > > > I forgot to copy my current code off the machine..  will this
> > > 

Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

So the 
http://linuxcnc.org/docs/html/man/man1/halcmd.1.html
says \-f[file] 

halcmd -fk means k is a file?

I'm confused.
John


> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-08-20 9:44 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> The polygon Hal component can be enabled/disabled.
> 
> Here is me experimenting with parameters
> 
> http://electronicsam.com/images/greenmachine/2020-03-07-
> 191256_1920x1080_scrot.png
> 
> 
> On Sun, Mar 8, 2020, 11:34 PM John Dammeyer 
> wrote:
> 
> > But how is it done then?   I mean you wouldn't want X and Y moving on you
> > when you accidentally turn the spindle while tightening the drill chuck.
> > Yet it appeared your turned the tool and the XY axis moved.
> >
> > Thanks
> > john
> >
> >
> > > -Original Message-
> > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > Sent: March-08-20 9:02 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >
> > > The spindle has a 36 tooth gear with quadrature gear tooth sensors. So
> > only
> > > 144 counts per rev.   Partly why it is so noisy.
> > >
> > > On Sun, Mar 8, 2020, 10:30 PM John Dammeyer
> 
> > > wrote:
> > >
> > > > Cool.
> > > > How is this done?  As I recall your spindle didn't have 1000 pulses per
> > > > rev or anything.  Does it just calculate the current angle of the
> > spindle
> > > > and then send motion commands to XY?
> > > > Thanks
> > > > John
> > > >
> > > >
> > > > > -Original Message-
> > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > Sent: March-08-20 8:18 PM
> > > > > To: Enhanced Machine Controller (EMC)
> > > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > >
> > > > > Exactly
> > > > >
> > > > > On Sun, Mar 8, 2020, 10:16 PM John Dammeyer
> > > 
> > > > > wrote:
> > > > >
> > > > > > So was it using the spindle position as you turned it manually to
> > move
> > > > X
> > > > > > and Y?
> > > > > > John
> > > > > >
> > > > > >
> > > > > > > -Original Message-
> > > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > > Sent: March-08-20 7:09 PM
> > > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > > Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > > > >
> > > > > > > Using eoffset functionality - I created a small hal component
> > that
> > > > > > > calculates a polygon based on the tool orientation - moving x
> > and y
> > > > > > > accordingly..  It is based on work that andy did on his lathe.
> > > > > > >
> > > > > > > You enter tool radius, number of sides, inscribed radius of the
> > > > polygon.
> > > > > > > (still a work in progress - I don't have a way a easy to set the
> > > > tool or
> > > > > > > polygon orientation.)
> > > > > > >
> > > > > > > based on this formula
> > > > > > > https://math.stackexchange.com/a/41954
> > > > > > >
> > > > > > > I forgot to copy my current code off the machine..  will this
> > week.
> > > > > > >
> > > > > > > https://www.youtube.com/watch?v=c9tWtEG1Exc
> > > > > > >
> > > > > > > ___
> > > > > > > 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
> > > >
> > >
> > > ___
> > > 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] Non-circular boring. Linuxcnc style.

[Peter C. Wallace]

On Sun, 8 Mar 2020, Sam Sokolik wrote:


Date: Sun, 8 Mar 2020 23:43:30 -0500
From: Sam Sokolik 
Reply-To: "Enhanced Machine Controller (EMC)"

To: "Enhanced Machine Controller (EMC)" 
Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.

The polygon Hal component can be enabled/disabled.

Here is me experimenting with parameters

http://electronicsam.com/images/greenmachine/2020-03-07-191256_1920x1080_scrot.png




Since the spindle velocity is relatively constant it might be possible to low 
pass filter the spindle position and make the xy motion a bit less "crunchy"






On Sun, Mar 8, 2020, 11:34 PM John Dammeyer  wrote:


But how is it done then?   I mean you wouldn't want X and Y moving on you
when you accidentally turn the spindle while tightening the drill chuck.
Yet it appeared your turned the tool and the XY axis moved.

Thanks
john



-Original Message-
From: Sam Sokolik [mailto:samco...@gmail.com]
Sent: March-08-20 9:02 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.

The spindle has a 36 tooth gear with quadrature gear tooth sensors. So

only

144 counts per rev.   Partly why it is so noisy.

On Sun, Mar 8, 2020, 10:30 PM John Dammeyer 
wrote:


Cool.
How is this done?  As I recall your spindle didn't have 1000 pulses per
rev or anything.  Does it just calculate the current angle of the

spindle

and then send motion commands to XY?
Thanks
John



-Original Message-
From: Sam Sokolik [mailto:samco...@gmail.com]
Sent: March-08-20 8:18 PM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.

Exactly

On Sun, Mar 8, 2020, 10:16 PM John Dammeyer



wrote:


So was it using the spindle position as you turned it manually to

move

X

and Y?
John



-Original Message-
From: Sam Sokolik [mailto:samco...@gmail.com]
Sent: March-08-20 7:09 PM
To: Enhanced Machine Controller (EMC)
Subject: [Emc-users] Non-circular boring. Linuxcnc style.

Using eoffset functionality - I created a small hal component

that

calculates a polygon based on the tool orientation - moving x

and y

accordingly..  It is based on work that andy did on his lathe.

You enter tool radius, number of sides, inscribed radius of the

polygon.

(still a work in progress - I don't have a way a easy to set the

tool or

polygon orientation.)

based on this formula
https://math.stackexchange.com/a/41954

I forgot to copy my current code off the machine..  will this

week.


https://www.youtube.com/watch?v=c9tWtEG1Exc

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Peter Wallace
Mesa Electronics

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.



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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

The polygon Hal component can be enabled/disabled.

Here is me experimenting with parameters

http://electronicsam.com/images/greenmachine/2020-03-07-191256_1920x1080_scrot.png


On Sun, Mar 8, 2020, 11:34 PM John Dammeyer  wrote:

> But how is it done then?   I mean you wouldn't want X and Y moving on you
> when you accidentally turn the spindle while tightening the drill chuck.
> Yet it appeared your turned the tool and the XY axis moved.
>
> Thanks
> john
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-08-20 9:02 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > The spindle has a 36 tooth gear with quadrature gear tooth sensors. So
> only
> > 144 counts per rev.   Partly why it is so noisy.
> >
> > On Sun, Mar 8, 2020, 10:30 PM John Dammeyer 
> > wrote:
> >
> > > Cool.
> > > How is this done?  As I recall your spindle didn't have 1000 pulses per
> > > rev or anything.  Does it just calculate the current angle of the
> spindle
> > > and then send motion commands to XY?
> > > Thanks
> > > John
> > >
> > >
> > > > -Original Message-
> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > Sent: March-08-20 8:18 PM
> > > > To: Enhanced Machine Controller (EMC)
> > > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > > >
> > > > Exactly
> > > >
> > > > On Sun, Mar 8, 2020, 10:16 PM John Dammeyer
> > 
> > > > wrote:
> > > >
> > > > > So was it using the spindle position as you turned it manually to
> move
> > > X
> > > > > and Y?
> > > > > John
> > > > >
> > > > >
> > > > > > -Original Message-
> > > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > > Sent: March-08-20 7:09 PM
> > > > > > To: Enhanced Machine Controller (EMC)
> > > > > > Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > > >
> > > > > > Using eoffset functionality - I created a small hal component
> that
> > > > > > calculates a polygon based on the tool orientation - moving x
> and y
> > > > > > accordingly..  It is based on work that andy did on his lathe.
> > > > > >
> > > > > > You enter tool radius, number of sides, inscribed radius of the
> > > polygon.
> > > > > > (still a work in progress - I don't have a way a easy to set the
> > > tool or
> > > > > > polygon orientation.)
> > > > > >
> > > > > > based on this formula
> > > > > > https://math.stackexchange.com/a/41954
> > > > > >
> > > > > > I forgot to copy my current code off the machine..  will this
> week.
> > > > > >
> > > > > > https://www.youtube.com/watch?v=c9tWtEG1Exc
> > > > > >
> > > > > > ___
> > > > > > 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
> > >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

But how is it done then?   I mean you wouldn't want X and Y moving on you when 
you accidentally turn the spindle while tightening the drill chuck.  Yet it 
appeared your turned the tool and the XY axis moved.

Thanks
john


> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-08-20 9:02 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> The spindle has a 36 tooth gear with quadrature gear tooth sensors. So only
> 144 counts per rev.   Partly why it is so noisy.
> 
> On Sun, Mar 8, 2020, 10:30 PM John Dammeyer 
> wrote:
> 
> > Cool.
> > How is this done?  As I recall your spindle didn't have 1000 pulses per
> > rev or anything.  Does it just calculate the current angle of the spindle
> > and then send motion commands to XY?
> > Thanks
> > John
> >
> >
> > > -Original Message-
> > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > Sent: March-08-20 8:18 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> > >
> > > Exactly
> > >
> > > On Sun, Mar 8, 2020, 10:16 PM John Dammeyer
> 
> > > wrote:
> > >
> > > > So was it using the spindle position as you turned it manually to move
> > X
> > > > and Y?
> > > > John
> > > >
> > > >
> > > > > -Original Message-
> > > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > > Sent: March-08-20 7:09 PM
> > > > > To: Enhanced Machine Controller (EMC)
> > > > > Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> > > > >
> > > > > Using eoffset functionality - I created a small hal component that
> > > > > calculates a polygon based on the tool orientation - moving x and y
> > > > > accordingly..  It is based on work that andy did on his lathe.
> > > > >
> > > > > You enter tool radius, number of sides, inscribed radius of the
> > polygon.
> > > > > (still a work in progress - I don't have a way a easy to set the
> > tool or
> > > > > polygon orientation.)
> > > > >
> > > > > based on this formula
> > > > > https://math.stackexchange.com/a/41954
> > > > >
> > > > > I forgot to copy my current code off the machine..  will this week.
> > > > >
> > > > > https://www.youtube.com/watch?v=c9tWtEG1Exc
> > > > >
> > > > > ___
> > > > > 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] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

The spindle has a 36 tooth gear with quadrature gear tooth sensors. So only
144 counts per rev.   Partly why it is so noisy.

On Sun, Mar 8, 2020, 10:30 PM John Dammeyer  wrote:

> Cool.
> How is this done?  As I recall your spindle didn't have 1000 pulses per
> rev or anything.  Does it just calculate the current angle of the spindle
> and then send motion commands to XY?
> Thanks
> John
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-08-20 8:18 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > Exactly
> >
> > On Sun, Mar 8, 2020, 10:16 PM John Dammeyer 
> > wrote:
> >
> > > So was it using the spindle position as you turned it manually to move
> X
> > > and Y?
> > > John
> > >
> > >
> > > > -Original Message-
> > > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > > Sent: March-08-20 7:09 PM
> > > > To: Enhanced Machine Controller (EMC)
> > > > Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> > > >
> > > > Using eoffset functionality - I created a small hal component that
> > > > calculates a polygon based on the tool orientation - moving x and y
> > > > accordingly..  It is based on work that andy did on his lathe.
> > > >
> > > > You enter tool radius, number of sides, inscribed radius of the
> polygon.
> > > > (still a work in progress - I don't have a way a easy to set the
> tool or
> > > > polygon orientation.)
> > > >
> > > > based on this formula
> > > > https://math.stackexchange.com/a/41954
> > > >
> > > > I forgot to copy my current code off the machine..  will this week.
> > > >
> > > > https://www.youtube.com/watch?v=c9tWtEG1Exc
> > > >
> > > > ___
> > > > 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] Non-circular boring. Linuxcnc style.

[Gene Heskett]

On Sunday 08 March 2020 22:09:01 Sam Sokolik wrote:

> Using eoffset functionality - I created a small hal component that
> calculates a polygon based on the tool orientation - moving x and y
> accordingly..  It is based on work that andy did on his lathe.
>
> You enter tool radius, number of sides, inscribed radius of the
> polygon. (still a work in progress - I don't have a way a easy to set
> the tool or polygon orientation.)
>
> based on this formula
> https://math.stackexchange.com/a/41954
>
> I forgot to copy my current code off the machine..  will this week.
>
> https://www.youtube.com/watch?v=c9tWtEG1Exc
>
Great idea Sam.  Looks like a way to implant a nut on the far side of 
anything. The huge advantage being that the nut is replaceable many 
times if it becomes damaged. This ought to become one of LinuxCNC's 
canned routines. Might take some creative gearing to reduce the spindle 
speed to something the xy can follow. But I believe I can turn my G0704 
slow enough to do that now, be for sure interesting to try. I have way 
more control than a stock G0704 with my spindle setup. .5 RPS is not out 
of my reach.

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)
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] Non-circular boring. Linuxcnc style.

[John Dammeyer]

Cool.  
How is this done?  As I recall your spindle didn't have 1000 pulses per rev or 
anything.  Does it just calculate the current angle of the spindle and then 
send motion commands to XY?
Thanks
John


> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-08-20 8:18 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> Exactly
> 
> On Sun, Mar 8, 2020, 10:16 PM John Dammeyer 
> wrote:
> 
> > So was it using the spindle position as you turned it manually to move X
> > and Y?
> > John
> >
> >
> > > -Original Message-
> > > From: Sam Sokolik [mailto:samco...@gmail.com]
> > > Sent: March-08-20 7:09 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> > >
> > > Using eoffset functionality - I created a small hal component that
> > > calculates a polygon based on the tool orientation - moving x and y
> > > accordingly..  It is based on work that andy did on his lathe.
> > >
> > > You enter tool radius, number of sides, inscribed radius of the polygon.
> > > (still a work in progress - I don't have a way a easy to set the tool or
> > > polygon orientation.)
> > >
> > > based on this formula
> > > https://math.stackexchange.com/a/41954
> > >
> > > I forgot to copy my current code off the machine..  will this week.
> > >
> > > https://www.youtube.com/watch?v=c9tWtEG1Exc
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
> >
> > ___
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> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> 
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Exactly

On Sun, Mar 8, 2020, 10:16 PM John Dammeyer  wrote:

> So was it using the spindle position as you turned it manually to move X
> and Y?
> John
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-08-20 7:09 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> >
> > Using eoffset functionality - I created a small hal component that
> > calculates a polygon based on the tool orientation - moving x and y
> > accordingly..  It is based on work that andy did on his lathe.
> >
> > You enter tool radius, number of sides, inscribed radius of the polygon.
> > (still a work in progress - I don't have a way a easy to set the tool or
> > polygon orientation.)
> >
> > based on this formula
> > https://math.stackexchange.com/a/41954
> >
> > I forgot to copy my current code off the machine..  will this week.
> >
> > https://www.youtube.com/watch?v=c9tWtEG1Exc
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
> ___
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Re: [Emc-users] Non-circular boring. Linuxcnc style.

[John Dammeyer]

So was it using the spindle position as you turned it manually to move X and Y?
John


> -Original Message-
> From: Sam Sokolik [mailto:samco...@gmail.com]
> Sent: March-08-20 7:09 PM
> To: Enhanced Machine Controller (EMC)
> Subject: [Emc-users] Non-circular boring. Linuxcnc style.
> 
> Using eoffset functionality - I created a small hal component that
> calculates a polygon based on the tool orientation - moving x and y
> accordingly..  It is based on work that andy did on his lathe.
> 
> You enter tool radius, number of sides, inscribed radius of the polygon.
> (still a work in progress - I don't have a way a easy to set the tool or
> polygon orientation.)
> 
> based on this formula
> https://math.stackexchange.com/a/41954
> 
> I forgot to copy my current code off the machine..  will this week.
> 
> https://www.youtube.com/watch?v=c9tWtEG1Exc
> 
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[Emc-users] Non-circular boring. Linuxcnc style.

[Sam Sokolik]

Using eoffset functionality - I created a small hal component that
calculates a polygon based on the tool orientation - moving x and y
accordingly..  It is based on work that andy did on his lathe.

You enter tool radius, number of sides, inscribed radius of the polygon.
(still a work in progress - I don't have a way a easy to set the tool or
polygon orientation.)

based on this formula
https://math.stackexchange.com/a/41954

I forgot to copy my current code off the machine..  will this week.

https://www.youtube.com/watch?v=c9tWtEG1Exc

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