Re: [Emc-users] Got my new ATS-667's today, but thats a math connundrum for me.

[Gene Heskett]

On Monday 17 February 2020 18:08:11 Gene Heskett wrote:

> On Monday 17 February 2020 16:57:36 Les Newell wrote:
> > They should be any multiple of the tooth spacing plus half a tooth
> > spacing.
> >
> > Your tooth spacing (pi x diameter) / number of teeth = 0.314"
> >
> > So the available spacings between the sensor are:
> >
> > (0.314 x 0) + (0.314 / 2) = 0.157
> >
> > (0.314 x 1) + (0.314 / 2) = 0.471
> >
I have the final ATS667 in the process of glueing with as close to .471" 
from left side to left side, should be as close as I'm going to get it 
w/o actually making it movable. Now if the 5 pin plug doesn't hit the 
head cover casting, (or vice versa) it should at least be usable. Flat 
top cover, so I might get away with it. :)

Should be testable tomorrow. Cooking/curing under heat ATM.

> > and so on...
>
> I think my existing bracket can do the latter spaceing, thanks Les.
>
> > You won't get a perfect quadrature but it should be good enough.
> >
> >
> > Les
> >
> > On 17/02/2020 21:20, Gene Heskett wrote:
> > > Greetings all;
> > >
> > > Given that the bull gear in this lathe is exactly 6" in diameter
> > > at the outer face of the teeth;
> > >
> > > Given that it has 60 teeth;
> > >
> > > Given that the ATS-667's are mounted so as to clear the teeth by
> > > about 10 to 15 thou and they are slightly thicker than 5/32" inch.
> > > That would add about 3/16" to the radius of the arc they are
> > > mounted in, or 3/8" to the diameter;
> > >
> > > The mounting bracket currently has a slot per ATS-667 with around
> > > 1/16" of sideways motion per pocket;
> > >
> > > How far apart are they to be to output a good quadrature signal?
> > >
> > > Mounting them with JBKwik weld seems to be a lot less forgiving
> > > because its not possible to move them a few thou to fine tune like
> > > it was when using relatively flexible goop.
> > >
> > > Or do I need to redesign the bracket to make one holding slot
> > > adjustable somehow?
> > >
> > > Thanks all.
> > >
> > > Cheers, Gene Heskett
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett


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
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Re: [Emc-users] 6i24 + 7i44 configuration

[andrew beck]

Hey just a quick question on this.  Is it possible to take one is these iso
files update to linuxcnc 2.8 and then load it all onto a USB so I don't
have to go through the whole update thing every time I want to install
linuxcnc 2.8 on mint?

Regards

Andrew

On Tue, Mar 10, 2020, 10:58 AM Robert Murphy  wrote:

> They are =E2=80=9Ctesting=E2=80=9D in case the guy who put them together
> mes=
> sed up.
> All they are is a std Mint ISO with what is required to run linuxcnc. They
> c=
> an be installed and are good for a system, so far as no one has reported
> any=
>  major issues.
> Please read the first page fully, then follow the link to the appropriate
> pa=
> ge, read that and download.=20
>
> Composed with my Crayons=20
>
> On 10 Mar 2020, at 04:31, Leonardo Marsaglia 
> wrote:
>
> >>=20
> >> The kernel in the latest ISOs, from my testing, has better latency than
> >> the K=3D
> >> ona kernel. Cinnamon is quite resource hungry, MATE is next and XFCE is
> >> the l=3D
> >> ightest of the three.=3D20
> >> Wireless can have a negative effect . Out of interest what machine or
> >> mother=3D
> >> board specs have you got at your disposal?
> >=20
> >=20
> > I'm using an ASUS A58M-5 with a PCI-Express gpu. I didn't wan to use the
> > onboard just in case it increases the latency. The microprocessor is an
> > AMD  A4 4000.
> >=20
> > El lun., 9 mar. 2020 a las 14:27, Leonardo Marsaglia
> ( om>)
> > escribi=C3=B3:
> >=20
> >> Why?
> >>> The link I gave was to ISO images for prempt-rt and rtai.
> >>>=20
> >>>
> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-wi=
> th-rtai-and-rt?start=3D0
> 
> >>=20
> >>=20
> >> I tried the one on the link to the other thread because the ones shared
> o=
> n
> >> drive are meant to be used as live cd for testing, at least that's what
> i=
> t
> >> says there. But I can give it a try after work. Let me know if I missed
> >> something.
> >>=20
> >> El lun., 9 mar. 2020 a las 14:13, Robert Murphy ( >)=
>
> >> escribi=C3=B3:
> >>=20
> >>> The kernel in the latest ISOs, from my testing, has better latency than
> >>> the K=3D
> >>> ona kernel. Cinnamon is quite resource hungry, MATE is next and XFCE is
> >>> the l=3D
> >>> ightest of the three.=3D20
> >>> Wireless can have a negative effect . Out of interest what machine or
> >>> mother=3D
> >>> board specs have you got at your disposal?
> >>>=20
> >>> Composed with my Crayons=3D20
> >>>=20
> > On 10 Mar 2020, at 02:10, andy pugh  wrote:
> > =3D20
> > On Mon, 9 Mar 2020 at 14:18, Leonardo Marsaglia <
> ldmarsag...@gmail.com=
> >
> >>> w=3D
> >>> rote:
> > =3D20
> > I tried Cinnamon desktop and intalled the kernel following the
> >>> instructio=3D
> >>> ns
> > here :
> >=20
> >>>
> https://forum.linuxcnc.org/9-installing-linuxcnc/36822-linuxcnc-on-linux=
> -=3D
> 
> >>> mint-19-1-quick-and-easy-installation?start=3D3D0
> >>> <
> https://forum.linuxcnc.org/9-installing-linuxcnc/36822-linuxcnc-on-linu=
> x-=3Dmint-19-1-quick-and-easy-installation?start=3D3D0
> 
> >
>  =3D20
>  Why?
>  =3D20
>  The link I gave was to ISO images for prempt-rt and rtai.
>  =3D20
> =20
> >>>
> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-wi=
> th=3D
> 
> >>> -rtai-and-rt?start=3D3D0
> >>> <
> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-w=
> ith=3D-rtai-and-rt?start=3D3D0
> 
> >
>  =3D20
>  --=3D20
>  atp
>  "A motorcycle is a bicycle with a pandemonium attachment and is
>  designed for the especial use of mechanical geniuses, daredevils and
>  lunatics."
>  =3DE2=3D80=3D94 George Fitch, Atlanta Constitution Newspaper, 1912
>  =3D20
>  =3D20
>  ___
>  Emc-users mailing list
>  Emc-users@lists.sourceforge.net
>  https://lists.sourceforge.net/lists/listinfo/emc-users
> >>>=20
> >>>=20
> >>>=20
> >>> ___
> >>> Emc-users mailing list
> >>> Emc-users@lists.sourceforge.net
> >>> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>>=20
> >>=20
> >=20
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
>
>
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>

Re: [Emc-users] 6i24 + 7i44 configuration

[Robert Murphy]

They are =E2=80=9Ctesting=E2=80=9D in case the guy who put them together mes=
sed up.
All they are is a std Mint ISO with what is required to run linuxcnc. They c=
an be installed and are good for a system, so far as no one has reported any=
 major issues.
Please read the first page fully, then follow the link to the appropriate pa=
ge, read that and download.=20

Composed with my Crayons=20

On 10 Mar 2020, at 04:31, Leonardo Marsaglia  wrote:

>>=20
>> The kernel in the latest ISOs, from my testing, has better latency than
>> the K=3D
>> ona kernel. Cinnamon is quite resource hungry, MATE is next and XFCE is
>> the l=3D
>> ightest of the three.=3D20
>> Wireless can have a negative effect . Out of interest what machine or
>> mother=3D
>> board specs have you got at your disposal?
>=20
>=20
> I'm using an ASUS A58M-5 with a PCI-Express gpu. I didn't wan to use the
> onboard just in case it increases the latency. The microprocessor is an
> AMD  A4 4000.
>=20
> El lun., 9 mar. 2020 a las 14:27, Leonardo Marsaglia ()
> escribi=C3=B3:
>=20
>> Why?
>>> The link I gave was to ISO images for prempt-rt and rtai.
>>>=20
>>> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-wi=
th-rtai-and-rt?start=3D0
>>=20
>>=20
>> I tried the one on the link to the other thread because the ones shared o=
n
>> drive are meant to be used as live cd for testing, at least that's what i=
t
>> says there. But I can give it a try after work. Let me know if I missed
>> something.
>>=20
>> El lun., 9 mar. 2020 a las 14:13, Robert Murphy ()=

>> escribi=C3=B3:
>>=20
>>> The kernel in the latest ISOs, from my testing, has better latency than
>>> the K=3D
>>> ona kernel. Cinnamon is quite resource hungry, MATE is next and XFCE is
>>> the l=3D
>>> ightest of the three.=3D20
>>> Wireless can have a negative effect . Out of interest what machine or
>>> mother=3D
>>> board specs have you got at your disposal?
>>>=20
>>> Composed with my Crayons=3D20
>>>=20
> On 10 Mar 2020, at 02:10, andy pugh  wrote:
> =3D20
> On Mon, 9 Mar 2020 at 14:18, Leonardo Marsaglia 
>>> w=3D
>>> rote:
> =3D20
> I tried Cinnamon desktop and intalled the kernel following the
>>> instructio=3D
>>> ns
> here :
>=20
>>> https://forum.linuxcnc.org/9-installing-linuxcnc/36822-linuxcnc-on-linux=
-=3D
>>> mint-19-1-quick-and-easy-installation?start=3D3D0
>>> 
 =3D20
 Why?
 =3D20
 The link I gave was to ISO images for prempt-rt and rtai.
 =3D20
=20
>>> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-wi=
th=3D
>>> -rtai-and-rt?start=3D3D0
>>> 
 =3D20
 --=3D20
 atp
 "A motorcycle is a bicycle with a pandemonium attachment and is
 designed for the especial use of mechanical geniuses, daredevils and
 lunatics."
 =3DE2=3D80=3D94 George Fitch, Atlanta Constitution Newspaper, 1912
 =3D20
 =3D20
 ___
 Emc-users mailing list
 Emc-users@lists.sourceforge.net
 https://lists.sourceforge.net/lists/listinfo/emc-users
>>>=20
>>>=20
>>>=20
>>> ___
>>> Emc-users mailing list
>>> Emc-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>>=20
>>=20
>=20
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



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Re: [Emc-users] 6i24 + 7i44 configuration

[Leonardo Marsaglia]

>
> The kernel in the latest ISOs, from my testing, has better latency than
> the K=
> ona kernel. Cinnamon is quite resource hungry, MATE is next and XFCE is
> the l=
> ightest of the three.=20
> Wireless can have a negative effect . Out of interest what machine or
> mother=
> board specs have you got at your disposal?


I'm using an ASUS A58M-5 with a PCI-Express gpu. I didn't wan to use the
onboard just in case it increases the latency. The microprocessor is an
AMD  A4 4000.

El lun., 9 mar. 2020 a las 14:27, Leonardo Marsaglia ()
escribió:

> Why?
>> The link I gave was to ISO images for prempt-rt and rtai.
>>
>> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with-rtai-and-rt?start=0
>
>
> I tried the one on the link to the other thread because the ones shared on
> drive are meant to be used as live cd for testing, at least that's what it
> says there. But I can give it a try after work. Let me know if I missed
> something.
>
> El lun., 9 mar. 2020 a las 14:13, Robert Murphy ()
> escribió:
>
>> The kernel in the latest ISOs, from my testing, has better latency than
>> the K=
>> ona kernel. Cinnamon is quite resource hungry, MATE is next and XFCE is
>> the l=
>> ightest of the three.=20
>> Wireless can have a negative effect . Out of interest what machine or
>> mother=
>> board specs have you got at your disposal?
>>
>> Composed with my Crayons=20
>>
>> > On 10 Mar 2020, at 02:10, andy pugh  wrote:
>> >=20
>> >> On Mon, 9 Mar 2020 at 14:18, Leonardo Marsaglia 
>> w=
>> rote:
>> >>=20
>> >> I tried Cinnamon desktop and intalled the kernel following the
>> instructio=
>> ns
>> >> here :
>> >>
>> https://forum.linuxcnc.org/9-installing-linuxcnc/36822-linuxcnc-on-linux-=
>> mint-19-1-quick-and-easy-installation?start=3D0
>> 
>> >=20
>> > Why?
>> >=20
>> > The link I gave was to ISO images for prempt-rt and rtai.
>> >=20
>> >
>> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with=
>> -rtai-and-rt?start=3D0
>> 
>> >=20
>> > --=20
>> > atp
>> > "A motorcycle is a bicycle with a pandemonium attachment and is
>> > designed for the especial use of mechanical geniuses, daredevils and
>> > lunatics."
>> > =E2=80=94 George Fitch, Atlanta Constitution Newspaper, 1912
>> >=20
>> >=20
>> > ___
>> > 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] 6i24 + 7i44 configuration

[Leonardo Marsaglia]

>
> Why?
> The link I gave was to ISO images for prempt-rt and rtai.
>
> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with-rtai-and-rt?start=0


I tried the one on the link to the other thread because the ones shared on
drive are meant to be used as live cd for testing, at least that's what it
says there. But I can give it a try after work. Let me know if I missed
something.

El lun., 9 mar. 2020 a las 14:13, Robert Murphy ()
escribió:

> The kernel in the latest ISOs, from my testing, has better latency than
> the K=
> ona kernel. Cinnamon is quite resource hungry, MATE is next and XFCE is
> the l=
> ightest of the three.=20
> Wireless can have a negative effect . Out of interest what machine or
> mother=
> board specs have you got at your disposal?
>
> Composed with my Crayons=20
>
> > On 10 Mar 2020, at 02:10, andy pugh  wrote:
> >=20
> >> On Mon, 9 Mar 2020 at 14:18, Leonardo Marsaglia 
> w=
> rote:
> >>=20
> >> I tried Cinnamon desktop and intalled the kernel following the
> instructio=
> ns
> >> here :
> >>
> https://forum.linuxcnc.org/9-installing-linuxcnc/36822-linuxcnc-on-linux-=
> mint-19-1-quick-and-easy-installation?start=3D0
> 
> >=20
> > Why?
> >=20
> > The link I gave was to ISO images for prempt-rt and rtai.
> >=20
> >
> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with=
> -rtai-and-rt?start=3D0
> 
> >=20
> > --=20
> > atp
> > "A motorcycle is a bicycle with a pandemonium attachment and is
> > designed for the especial use of mechanical geniuses, daredevils and
> > lunatics."
> > =E2=80=94 George Fitch, Atlanta Constitution Newspaper, 1912
> >=20
> >=20
> > ___
> > 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] 6i24 + 7i44 configuration

[Robert Murphy]

The kernel in the latest ISOs, from my testing, has better latency than the K=
ona kernel. Cinnamon is quite resource hungry, MATE is next and XFCE is the l=
ightest of the three.=20
Wireless can have a negative effect . Out of interest what machine or mother=
board specs have you got at your disposal?

Composed with my Crayons=20

> On 10 Mar 2020, at 02:10, andy pugh  wrote:
>=20
>> On Mon, 9 Mar 2020 at 14:18, Leonardo Marsaglia  w=
rote:
>>=20
>> I tried Cinnamon desktop and intalled the kernel following the instructio=
ns
>> here :
>> https://forum.linuxcnc.org/9-installing-linuxcnc/36822-linuxcnc-on-linux-=
mint-19-1-quick-and-easy-installation?start=3D0
>=20
> Why?
>=20
> The link I gave was to ISO images for prempt-rt and rtai.
>=20
> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with=
-rtai-and-rt?start=3D0
>=20
> --=20
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> =E2=80=94 George Fitch, Atlanta Constitution Newspaper, 1912
>=20
>=20
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
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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 
>
>
> ___
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>

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Re: [Emc-users] 6i24 + 7i44 configuration

[andy pugh]

On Mon, 9 Mar 2020 at 14:18, Leonardo Marsaglia  wrote:
>
> I tried Cinnamon desktop and intalled the kernel following the instructions
> here :
> https://forum.linuxcnc.org/9-installing-linuxcnc/36822-linuxcnc-on-linux-mint-19-1-quick-and-easy-installation?start=0

Why?

The link I gave was to ISO images for prempt-rt and rtai.

https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with-rtai-and-rt?start=0

-- 
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] 6i24 + 7i44 configuration

[Leonardo Marsaglia]

I tried Cinnamon desktop and intalled the kernel following the instructions
here :
https://forum.linuxcnc.org/9-installing-linuxcnc/36822-linuxcnc-on-linux-mint-19-1-quick-and-easy-installation?start=0

linux-headers-4.16.12-rt5-kona-rt_amd64.deb
linux-image-4.16.12-rt5-kona-rt_amd64.deb

I had the same latency issues  as with Debian Stretch.

El lun., 9 mar. 2020 a las 9:10, andy pugh () escribió:

> On Mon, 9 Mar 2020 at 11:02, Robert Murphy  wrote:
> >
> > Which version did you try ?
> >
> > The XCFE versions, which is the same desktop as Wheezy & Stretch, should
> > give better latency than the MATE versions.
>
> Also, which kernel? I was suggesting this to try the new RTAI kernel.
>
> --
> 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.

[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] 6i24 + 7i44 configuration

[andy pugh]

On Mon, 9 Mar 2020 at 11:02, Robert Murphy  wrote:
>
> Which version did you try ?
>
> The XCFE versions, which is the same desktop as Wheezy & Stretch, should
> give better latency than the MATE versions.

Also, which kernel? I was suggesting this to try the new RTAI kernel.

-- 
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] 6i24 + 7i44 configuration

[Robert Murphy]

Which version did you try ?

The XCFE versions, which is the same desktop as Wheezy & Stretch, should
give better latency than the MATE versions.

On 9/3/20 8:51 pm, Leonardo Marsaglia wrote:

Wheezy is pretty ancient now.
You could try the preempt-rt and rtai ISOs built on Mint here:

https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with-rtai-and-rt?start=0


  I tried with Mint and then LCNC last night Andy, but the latency test went
crazy as soon as I opened Firefox. I went back to Wheezy for now and I'll
continue testing some other distro to upgrade it later. The good thing is
all the boards are working fine. I only need to test the 7i52s with the
servo motors and I'm ready to switch the control of the lathe.

El dom., 8 mar. 2020 a las 13:18, andy pugh () escribió:


On Sun, 8 Mar 2020 at 02:29, Leonardo Marsaglia 
wrote:


I had really high jitter when I run latency test with Debian Stretch. So

I

installed Wheezy with LinuxCNC 2.7.14

Wheezy is pretty ancient now.
You could try the preempt-rt and rtai ISOs built on Mint here:

https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with-rtai-and-rt?start=0

--
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] 6i24 + 7i44 configuration

[Leonardo Marsaglia]

>
> Wheezy is pretty ancient now.
> You could try the preempt-rt and rtai ISOs built on Mint here:
>
> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with-rtai-and-rt?start=0


 I tried with Mint and then LCNC last night Andy, but the latency test went
crazy as soon as I opened Firefox. I went back to Wheezy for now and I'll
continue testing some other distro to upgrade it later. The good thing is
all the boards are working fine. I only need to test the 7i52s with the
servo motors and I'm ready to switch the control of the lathe.

El dom., 8 mar. 2020 a las 13:18, andy pugh () escribió:

> On Sun, 8 Mar 2020 at 02:29, Leonardo Marsaglia 
> wrote:
>
> > I had really high jitter when I run latency test with Debian Stretch. So
> I
> > installed Wheezy with LinuxCNC 2.7.14
>
> Wheezy is pretty ancient now.
> You could try the preempt-rt and rtai ISOs built on Mint here:
>
> https://forum.linuxcnc.org/9-installing-linuxcnc/38308-linux-mint-iso-with-rtai-and-rt?start=0
>
> --
> 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 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 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
> > > >

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 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
> > 

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.
> > > > > > > > >
> > > > > > > > > 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
> > >