Re: [Emc-users] 'automatically' go halfway between 2 points

[John Dammeyer]

Here are your 3 points.  As a math wiz you can see that if you draw a 
perpendicular line from each pair of points they all intersect in the middle.
 
The third angle is the one I can create graphically and from that the length 
for the XY of the center but you might be able to explain the math a bit better.
 

 
> -Original Message-
> From: R C [mailto:cjv...@gmail.com]
> Sent: July-11-21 10:31 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] 'automatically' go halfway between 2 points
> 
> 
> On 7/11/21 11:15 PM, John Dammeyer wrote:
> > Essentially the process involves two touch off operations.  First one side 
> > until an LED comes on or even better the probe input goes
> active.  At that point touch off so the axis is set to 0.
> >
> > Then you move in the opposite direction until the probe (or LED) goes 
> > active.  Divide that axis value by two and move back to that
> position.  Now touch off again to set the axis to 0.  You are now in the 
> middle.
> 
> Right,� I can do that with a calculator and some arithmetic, and jog
> there manually,� but I am a mathematician,� and we're known to be lazy,�
> so I am thinking about a button�� :)
> 
> 
> >
> > It's probably possible with a fancy G-Code macro.
> 
> well,� if one can write a plugin,� it would probably be fairly easy (but
> I am a CNC rookie) to do that,� if that plugin can actually move the
> tool/spindle
> 
> 
> >
> > A number of different projects I've done have been set up that way.  Find 
> > the center of the object which is also where I've set the
> center in the CAM software.  Rather than top left or bottom left corner of 
> something that has been milled away.
> 
> right,� I don't think it is not too difficult to find the center of all
> kinds of shapes (geometrically or otherwise), in a math kinda way that is.
> 
> 
> >
> > But I'm an amateur and probably do things the hard way.  Often...
> well,� hobbyist that's trying to learn some stuff here,� I am actually a
> mathematician,� I can calculate things,� but I'd be a starving machinist
> or CNC person/operator/machinist ...�� this weekend I created 4 proto
> types of a stepper motor mount,� aka scrap.
> >
> > John
> 
> Ron
> 
> 
> >
> >> -Original Message-
> >> From: R C [  mailto:cjv...@gmail.com]
> >> Sent: July-11-21 10:00 PM
> >> To:   
> >> emc-users@lists.sourceforge.net
> >> Subject: Re: [Emc-users] 'automatically' go halfway between 2 points
> >>
> >>
> >> On 7/11/21 10:47 PM, John Dammeyer wrote:
> >>> I still have my Shumatech DRO on my mill.  I touch one side and zero the 
> >>> axis.  I then move across and jog until the LED goes on.
> >> Then FCN 1 and the axis letter button.  At that point the axis changes to 
> >> minus halfway between where I just touched off and the
> >> original 0 point.
> >>> I move to make the DRO show 0 and then touch off that axis on the AXIS 
> >>> screen.  Now I have the center point between the two
> >> edges.  Since the LED indicator probe is 0.2" diameter the distance to the 
> >> center doesn't matter.  Only if I am trying to find the
> edge
> >> and the Shumatech can be told the diameter of the probe.
> >>> Certainly there must be an easy way to do this with LCNC?  The Shumatech 
> >>> software has been around for at least 13 years.
> >>
> >> Oops,?? I didn't see this last line...?? I think so,??? either some
> >> added functionality in the DRO? (that is where I was looking around),?
> >> or else a plugin.?? it's probably not that hard,? if I knew how to write
> >> a plugin for LCNC
> >>
> >>
> >>> John
> >>>
> >>>
>  -Original Message-
>  From: R C [  mailto:cjv...@gmail.com]
>  Sent: July-11-21 9:29 PM
>  To: linuxcnc-users-list
>  Subject: [Emc-users] 'automatically' go halfway between 2 points
> 
>  Hello,
> 
> 
>  in linuxcnc,? is there an easy/automated way to get halfway between two
>  points??? (Fort example, you'd touch off somewhere, move to some
>  coordinate (x, y)? (or even (x, y, z)) and go inbetween right to the the
>  middle of where you touched off and where the spindle is now?
> 
> 
>  thanks,
> 
> 
>  Ron
> 
> 
> 
>  ___
>  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
> >>  

Re: [Emc-users] Code of Conduct

[Valerio Bellizzomi]

Nobody stops you, however your project will not gain much professional
attraction.




On Sun, 2021-07-11 at 22:55 -0600, R C wrote:
> No it isn't,
> 
> 
> I can start a open source project tomorrow (not today, cause it is 
> getting late), and not have a CoC, and who is going to stop me, if
> it 
> doesn't have a CoC?
> 
> 
> 
> 
> On 7/11/21 10:46 PM, Valerio Bellizzomi wrote:
> > Every open source project on Github.com and Sourceforge has a Code
> > of
> > Conduct, this is a necessary part of every public project.
> > 
> > Regards
> > 
> > 
> > 
> > On Mon, 2021-07-12 at 14:06 +0930, dva...@internode.on.net wrote:
> > >   
> > > 
> > > Valerio wrote: >>
> > >   So it be. Andy, my apologies for trying to support the adoption
> > > of a
> > >   CoC, either the one proposed by Jeff or that of W3C as I
> > > proposed.
> > >   Evidently the idea of being an organized community doesn't
> > > appeal to
> > >   LinuxCNC users. I don't understand why there is so much
> > > opposition,
> > >   after all it is assumed that an organized community is able to
> > > work
> > >   better and with more personal satisfaction for all the
> > > participants,
> > >   and instead in this case a terrible conflict has broken out.
> > > 
> > > 
> > > ___
> > > 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] 'automatically' go halfway between 2 points

[R C]

On 7/11/21 11:15 PM, John Dammeyer wrote:

Essentially the process involves two touch off operations.  First one side 
until an LED comes on or even better the probe input goes active.  At that 
point touch off so the axis is set to 0.

Then you move in the opposite direction until the probe (or LED) goes active.  
Divide that axis value by two and move back to that position.  Now touch off 
again to set the axis to 0.  You are now in the middle.


Right,  I can do that with a calculator and some arithmetic, and jog 
there manually,  but I am a mathematician,  and we're known to be lazy,  
so I am thinking about a button   :)





It's probably possible with a fancy G-Code macro.


well,  if one can write a plugin,  it would probably be fairly easy (but 
I am a CNC rookie) to do that,  if that plugin can actually move the 
tool/spindle





A number of different projects I've done have been set up that way.  Find the 
center of the object which is also where I've set the center in the CAM 
software.  Rather than top left or bottom left corner of something that has 
been milled away.


right,  I don't think it is not too difficult to find the center of all 
kinds of shapes (geometrically or otherwise), in a math kinda way that is.





But I'm an amateur and probably do things the hard way.  Often...
well,  hobbyist that's trying to learn some stuff here,  I am actually a 
mathematician,  I can calculate things,  but I'd be a starving machinist 
or CNC person/operator/machinist ...   this weekend I created 4 proto 
types of a stepper motor mount,  aka scrap.


John


Ron





-Original Message-
From: R C [mailto:cjv...@gmail.com]
Sent: July-11-21 10:00 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] 'automatically' go halfway between 2 points


On 7/11/21 10:47 PM, John Dammeyer wrote:

I still have my Shumatech DRO on my mill.  I touch one side and zero the axis.  
I then move across and jog until the LED goes on.

Then FCN 1 and the axis letter button.  At that point the axis changes to minus 
halfway between where I just touched off and the
original 0 point.

I move to make the DRO show 0 and then touch off that axis on the AXIS screen.  
Now I have the center point between the two

edges.  Since the LED indicator probe is 0.2" diameter the distance to the 
center doesn't matter.  Only if I am trying to find the edge
and the Shumatech can be told the diameter of the probe.

Certainly there must be an easy way to do this with LCNC?  The Shumatech 
software has been around for at least 13 years.


Oops,�� I didn't see this last line...�� I think so,��� either some
added functionality in the DRO� (that is where I was looking around),�
or else a plugin.�� it's probably not that hard,� if I knew how to write
a plugin for LCNC



John



-Original Message-
From: R C [mailto:cjv...@gmail.com]
Sent: July-11-21 9:29 PM
To: linuxcnc-users-list
Subject: [Emc-users] 'automatically' go halfway between 2 points

Hello,


in linuxcnc,? is there an easy/automated way to get halfway between two
points??? (Fort example, you'd touch off somewhere, move to some
coordinate (x, y)? (or even (x, y, z)) and go inbetween right to the the
middle of where you touched off and where the spindle is now?


thanks,


Ron



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Re: [Emc-users] 'automatically' go halfway between 2 points

[R C]

I have been watching a lot of CNC and machining videos over the past 
year and a half too...  (which makes me wonder why I still turn so much 
stock into scrap.. :)  )


On 7/11/21 11:15 PM, John Dammeyer wrote:

I've been watching the Tormach Path Pilot videos and there's a lot of 
information in the LCNC side of things for setting tool height etc.  There are 
a number of G-Code macros that can find edges.

John



-Original Message-
From: R C [mailto:cjv...@gmail.com]
Sent: July-11-21 9:58 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] 'automatically' go halfway between 2 points

Hi John,


I have seen videos about these electronic "add on" DROs that is actually
why I am asking.�� It would be incredibly helpful finding the center of
circles (aka holes), or squares, the center of stock etc etc.


That's why I wondered if there is something like that in linuxcnc.��
(Maybe I should start looking into how to build plugins for linuxcnc...� )

thanks,

Ron


On 7/11/21 10:47 PM, John Dammeyer wrote:

I still have my Shumatech DRO on my mill.  I touch one side and zero the axis.  
I then move across and jog until the LED goes on.

Then FCN 1 and the axis letter button.  At that point the axis changes to minus 
halfway between where I just touched off and the
original 0 point.

I move to make the DRO show 0 and then touch off that axis on the AXIS screen.  
Now I have the center point between the two

edges.  Since the LED indicator probe is 0.2" diameter the distance to the 
center doesn't matter.  Only if I am trying to find the edge
and the Shumatech can be told the diameter of the probe.

Certainly there must be an easy way to do this with LCNC?  The Shumatech 
software has been around for at least 13 years.

John



-Original Message-
From: R C [mailto:cjv...@gmail.com]
Sent: July-11-21 9:29 PM
To: linuxcnc-users-list
Subject: [Emc-users] 'automatically' go halfway between 2 points

Hello,


in linuxcnc,? is there an easy/automated way to get halfway between two
points??? (Fort example, you'd touch off somewhere, move to some
coordinate (x, y)? (or even (x, y, z)) and go inbetween right to the the
middle of where you touched off and where the spindle is now?


thanks,


Ron



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Re: [Emc-users] 'automatically' go halfway between 2 points

[R C]

Hi Leonardo,

That was actually what I was looking for, a button "like that", and 
wondered if I just didn't see/find it.


Yeah I can see some "convenient" functionality in that,  but being able 
to go "half way" between two points, even with some iteration would 
help, to get that started


(It would be really easy, math wise, once you have something like that, 
to find the center of a circular hole,  or a rectangle, or anything 
symmetrical, basically)


I wonder, in hal, with a plugin, if you can just move the tool/spindle, 
and the DRO screen shows where it is going. For example,  for finding 
the center of a circular hole, you'd only need to find the edge in 3 
spots, and then just "go there".



I'd love to figure out how to write a plugin like that.


Ron




On 7/11/21 11:08 PM, Leonardo Marsaglia wrote:

Hi Ron,

I guess you could do it with a custom component in HAL. You can link a
physical button to set the points and then compute the center point. You
should need a reset button and some other functionalities too I guess, but
I think it's perfectly doable. Also you could show the output with pyvcp so
you can replicate what a DRO does. It's not that easy but neither that hard
I guess.

El lun, 12 jul 2021 a las 2:02, R C () escribió:


On 7/11/21 10:47 PM, John Dammeyer wrote:

I still have my Shumatech DRO on my mill.  I touch one side and zero the

axis.  I then move across and jog until the LED goes on. Then FCN 1 and the
axis letter button.  At that point the axis changes to minus halfway
between where I just touched off and the original 0 point.

I move to make the DRO show 0 and then touch off that axis on the AXIS

screen.  Now I have the center point between the two edges.  Since the LED
indicator probe is 0.2" diameter the distance to the center doesn't
matter.  Only if I am trying to find the edge and the Shumatech can be told
the diameter of the probe.

Certainly there must be an easy way to do this with LCNC?  The Shumatech

software has been around for at least 13 years.


Oops,   I didn't see this last line...   I think so,either some
added functionality in the DRO  (that is where I was looking around),
or else a plugin.   it's probably not that hard,  if I knew how to write
a plugin for LCNC



John



-Original Message-
From: R C [mailto:cjv...@gmail.com]
Sent: July-11-21 9:29 PM
To: linuxcnc-users-list
Subject: [Emc-users] 'automatically' go halfway between 2 points

Hello,


in linuxcnc,� is there an easy/automated way to get halfway between two
points?�� (Fort example, you'd touch off somewhere, move to some
coordinate (x, y)� (or even (x, y, z)) and go inbetween right to the the
middle of where you touched off and where the spindle is now?


thanks,


Ron



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Re: [Emc-users] 'automatically' go halfway between 2 points

[John Dammeyer]

I've been watching the Tormach Path Pilot videos and there's a lot of 
information in the LCNC side of things for setting tool height etc.  There are 
a number of G-Code macros that can find edges.

John


> -Original Message-
> From: R C [mailto:cjv...@gmail.com]
> Sent: July-11-21 9:58 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] 'automatically' go halfway between 2 points
> 
> Hi John,
> 
> 
> I have seen videos about these electronic "add on" DROs that is actually
> why I am asking.�� It would be incredibly helpful finding the center of
> circles (aka holes), or squares, the center of stock etc etc.
> 
> 
> That's why I wondered if there is something like that in linuxcnc.��
> (Maybe I should start looking into how to build plugins for linuxcnc...� )
> 
> thanks,
> 
> Ron
> 
> 
> On 7/11/21 10:47 PM, John Dammeyer wrote:
> > I still have my Shumatech DRO on my mill.  I touch one side and zero the 
> > axis.  I then move across and jog until the LED goes on.
> Then FCN 1 and the axis letter button.  At that point the axis changes to 
> minus halfway between where I just touched off and the
> original 0 point.
> >
> > I move to make the DRO show 0 and then touch off that axis on the AXIS 
> > screen.  Now I have the center point between the two
> edges.  Since the LED indicator probe is 0.2" diameter the distance to the 
> center doesn't matter.  Only if I am trying to find the edge
> and the Shumatech can be told the diameter of the probe.
> >
> > Certainly there must be an easy way to do this with LCNC?  The Shumatech 
> > software has been around for at least 13 years.
> >
> > John
> >
> >
> >> -Original Message-
> >> From: R C [mailto:cjv...@gmail.com]
> >> Sent: July-11-21 9:29 PM
> >> To: linuxcnc-users-list
> >> Subject: [Emc-users] 'automatically' go halfway between 2 points
> >>
> >> Hello,
> >>
> >>
> >> in linuxcnc,? is there an easy/automated way to get halfway between two
> >> points??? (Fort example, you'd touch off somewhere, move to some
> >> coordinate (x, y)? (or even (x, y, z)) and go inbetween right to the the
> >> middle of where you touched off and where the spindle is now?
> >>
> >>
> >> thanks,
> >>
> >>
> >> Ron
> >>
> >>
> >>
> >> ___
> >> 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] 'automatically' go halfway between 2 points

[John Dammeyer]

Essentially the process involves two touch off operations.  First one side 
until an LED comes on or even better the probe input goes active.  At that 
point touch off so the axis is set to 0.

Then you move in the opposite direction until the probe (or LED) goes active.  
Divide that axis value by two and move back to that position.  Now touch off 
again to set the axis to 0.  You are now in the middle.

It's probably possible with a fancy G-Code macro.  

A number of different projects I've done have been set up that way.  Find the 
center of the object which is also where I've set the center in the CAM 
software.  Rather than top left or bottom left corner of something that has 
been milled away.

But I'm an amateur and probably do things the hard way.  Often...

John

> -Original Message-
> From: R C [mailto:cjv...@gmail.com]
> Sent: July-11-21 10:00 PM
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] 'automatically' go halfway between 2 points
> 
> 
> On 7/11/21 10:47 PM, John Dammeyer wrote:
> > I still have my Shumatech DRO on my mill.  I touch one side and zero the 
> > axis.  I then move across and jog until the LED goes on.
> Then FCN 1 and the axis letter button.  At that point the axis changes to 
> minus halfway between where I just touched off and the
> original 0 point.
> >
> > I move to make the DRO show 0 and then touch off that axis on the AXIS 
> > screen.  Now I have the center point between the two
> edges.  Since the LED indicator probe is 0.2" diameter the distance to the 
> center doesn't matter.  Only if I am trying to find the edge
> and the Shumatech can be told the diameter of the probe.
> >
> > Certainly there must be an easy way to do this with LCNC?  The Shumatech 
> > software has been around for at least 13 years.
> 
> 
> Oops,�� I didn't see this last line...�� I think so,��� either some
> added functionality in the DRO� (that is where I was looking around),�
> or else a plugin.�� it's probably not that hard,� if I knew how to write
> a plugin for LCNC
> 
> 
> > John
> >
> >
> >> -Original Message-
> >> From: R C [mailto:cjv...@gmail.com]
> >> Sent: July-11-21 9:29 PM
> >> To: linuxcnc-users-list
> >> Subject: [Emc-users] 'automatically' go halfway between 2 points
> >>
> >> Hello,
> >>
> >>
> >> in linuxcnc,? is there an easy/automated way to get halfway between two
> >> points??? (Fort example, you'd touch off somewhere, move to some
> >> coordinate (x, y)? (or even (x, y, z)) and go inbetween right to the the
> >> middle of where you touched off and where the spindle is now?
> >>
> >>
> >> thanks,
> >>
> >>
> >> Ron
> >>
> >>
> >>
> >> ___
> >> 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] 'automatically' go halfway between 2 points

[Leonardo Marsaglia]

Hi Ron,

I guess you could do it with a custom component in HAL. You can link a
physical button to set the points and then compute the center point. You
should need a reset button and some other functionalities too I guess, but
I think it's perfectly doable. Also you could show the output with pyvcp so
you can replicate what a DRO does. It's not that easy but neither that hard
I guess.

El lun, 12 jul 2021 a las 2:02, R C () escribió:

>
> On 7/11/21 10:47 PM, John Dammeyer wrote:
> > I still have my Shumatech DRO on my mill.  I touch one side and zero the
> axis.  I then move across and jog until the LED goes on. Then FCN 1 and the
> axis letter button.  At that point the axis changes to minus halfway
> between where I just touched off and the original 0 point.
> >
> > I move to make the DRO show 0 and then touch off that axis on the AXIS
> screen.  Now I have the center point between the two edges.  Since the LED
> indicator probe is 0.2" diameter the distance to the center doesn't
> matter.  Only if I am trying to find the edge and the Shumatech can be told
> the diameter of the probe.
> >
> > Certainly there must be an easy way to do this with LCNC?  The Shumatech
> software has been around for at least 13 years.
>
>
> Oops,   I didn't see this last line...   I think so,either some
> added functionality in the DRO  (that is where I was looking around),
> or else a plugin.   it's probably not that hard,  if I knew how to write
> a plugin for LCNC
>
>
> > John
> >
> >
> >> -Original Message-
> >> From: R C [mailto:cjv...@gmail.com]
> >> Sent: July-11-21 9:29 PM
> >> To: linuxcnc-users-list
> >> Subject: [Emc-users] 'automatically' go halfway between 2 points
> >>
> >> Hello,
> >>
> >>
> >> in linuxcnc,� is there an easy/automated way to get halfway between two
> >> points?�� (Fort example, you'd touch off somewhere, move to some
> >> coordinate (x, y)� (or even (x, y, z)) and go inbetween right to the the
> >> middle of where you touched off and where the spindle is now?
> >>
> >>
> >> thanks,
> >>
> >>
> >> Ron
> >>
> >>
> >>
> >> ___
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> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> >
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Re: [Emc-users] 'automatically' go halfway between 2 points

[R C]

On 7/11/21 10:47 PM, John Dammeyer wrote:

I still have my Shumatech DRO on my mill.  I touch one side and zero the axis.  
I then move across and jog until the LED goes on. Then FCN 1 and the axis 
letter button.  At that point the axis changes to minus halfway between where I 
just touched off and the original 0 point.

I move to make the DRO show 0 and then touch off that axis on the AXIS screen.  Now 
I have the center point between the two edges.  Since the LED indicator probe is 
0.2" diameter the distance to the center doesn't matter.  Only if I am trying 
to find the edge and the Shumatech can be told the diameter of the probe.

Certainly there must be an easy way to do this with LCNC?  The Shumatech 
software has been around for at least 13 years.



Oops,   I didn't see this last line...   I think so,    either some 
added functionality in the DRO  (that is where I was looking around),  
or else a plugin.   it's probably not that hard,  if I knew how to write 
a plugin for LCNC




John



-Original Message-
From: R C [mailto:cjv...@gmail.com]
Sent: July-11-21 9:29 PM
To: linuxcnc-users-list
Subject: [Emc-users] 'automatically' go halfway between 2 points

Hello,


in linuxcnc,� is there an easy/automated way to get halfway between two
points?�� (Fort example, you'd touch off somewhere, move to some
coordinate (x, y)� (or even (x, y, z)) and go inbetween right to the the
middle of where you touched off and where the spindle is now?


thanks,


Ron



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Re: [Emc-users] 'automatically' go halfway between 2 points

[R C]

Hi John,


I have seen videos about these electronic "add on" DROs that is actually 
why I am asking.   It would be incredibly helpful finding the center of 
circles (aka holes), or squares, the center of stock etc etc.



That's why I wondered if there is something like that in linuxcnc.   
(Maybe I should start looking into how to build plugins for linuxcnc...  )


thanks,

Ron


On 7/11/21 10:47 PM, John Dammeyer wrote:

I still have my Shumatech DRO on my mill.  I touch one side and zero the axis.  
I then move across and jog until the LED goes on. Then FCN 1 and the axis 
letter button.  At that point the axis changes to minus halfway between where I 
just touched off and the original 0 point.

I move to make the DRO show 0 and then touch off that axis on the AXIS screen.  Now 
I have the center point between the two edges.  Since the LED indicator probe is 
0.2" diameter the distance to the center doesn't matter.  Only if I am trying 
to find the edge and the Shumatech can be told the diameter of the probe.

Certainly there must be an easy way to do this with LCNC?  The Shumatech 
software has been around for at least 13 years.

John



-Original Message-
From: R C [mailto:cjv...@gmail.com]
Sent: July-11-21 9:29 PM
To: linuxcnc-users-list
Subject: [Emc-users] 'automatically' go halfway between 2 points

Hello,


in linuxcnc,� is there an easy/automated way to get halfway between two
points?�� (Fort example, you'd touch off somewhere, move to some
coordinate (x, y)� (or even (x, y, z)) and go inbetween right to the the
middle of where you touched off and where the spindle is now?


thanks,


Ron



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Re: [Emc-users] Code of Conduct

[R C]

No it isn't,


I can start a open source project tomorrow (not today, cause it is 
getting late), and not have a CoC, and who is going to stop me, if it 
doesn't have a CoC?





On 7/11/21 10:46 PM, Valerio Bellizzomi wrote:

Every open source project on Github.com and Sourceforge has a Code of
Conduct, this is a necessary part of every public project.

Regards



On Mon, 2021-07-12 at 14:06 +0930, dva...@internode.on.net wrote:
  


Valerio wrote: >>
  So it be. Andy, my apologies for trying to support the adoption of a
  CoC, either the one proposed by Jeff or that of W3C as I proposed.
  Evidently the idea of being an organized community doesn't appeal to
  LinuxCNC users. I don't understand why there is so much opposition,
  after all it is assumed that an organized community is able to work
  better and with more personal satisfaction for all the participants,
  and instead in this case a terrible conflict has broken out.


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Re: [Emc-users] 'automatically' go halfway between 2 points

[John Dammeyer]

I still have my Shumatech DRO on my mill.  I touch one side and zero the axis.  
I then move across and jog until the LED goes on. Then FCN 1 and the axis 
letter button.  At that point the axis changes to minus halfway between where I 
just touched off and the original 0 point.

I move to make the DRO show 0 and then touch off that axis on the AXIS screen.  
Now I have the center point between the two edges.  Since the LED indicator 
probe is 0.2" diameter the distance to the center doesn't matter.  Only if I am 
trying to find the edge and the Shumatech can be told the diameter of the probe.

Certainly there must be an easy way to do this with LCNC?  The Shumatech 
software has been around for at least 13 years.

John


> -Original Message-
> From: R C [mailto:cjv...@gmail.com]
> Sent: July-11-21 9:29 PM
> To: linuxcnc-users-list
> Subject: [Emc-users] 'automatically' go halfway between 2 points
> 
> Hello,
> 
> 
> in linuxcnc,� is there an easy/automated way to get halfway between two
> points?�� (Fort example, you'd touch off somewhere, move to some
> coordinate (x, y)� (or even (x, y, z)) and go inbetween right to the the
> middle of where you touched off and where the spindle is now?
> 
> 
> thanks,
> 
> 
> Ron
> 
> 
> 
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Re: [Emc-users] Code of Conduct

[Valerio Bellizzomi]

Every open source project on Github.com and Sourceforge has a Code of
Conduct, this is a necessary part of every public project.

Regards



On Mon, 2021-07-12 at 14:06 +0930, dva...@internode.on.net wrote:
>  
> 
> Valerio wrote: >>
>  So it be. Andy, my apologies for trying to support the adoption of a
>  CoC, either the one proposed by Jeff or that of W3C as I proposed.
>  Evidently the idea of being an organized community doesn't appeal to
>  LinuxCNC users. I don't understand why there is so much opposition,
>  after all it is assumed that an organized community is able to work
>  better and with more personal satisfaction for all the participants,
>  and instead in this case a terrible conflict has broken out.
> 
> 
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Re: [Emc-users] Code of Conduct

[dvalin]

 

Valerio wrote: >>
 So it be. Andy, my apologies for trying to support the adoption of a
 CoC, either the one proposed by Jeff or that of W3C as I proposed.
 Evidently the idea of being an organized community doesn't appeal to
 LinuxCNC users. I don't understand why there is so much opposition,
 after all it is assumed that an organized community is able to work
 better and with more personal satisfaction for all the participants,
 and instead in this case a terrible conflict has broken out.


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Re: [Emc-users] Code of Conduct

[dvalin]

 

- Original Message -
From: "Enhanced Machine Controller (EMC)" 
To:
Cc:
Sent:Tue, 29 Jun 2021 17:07:55 -0600
Subject:Re: [Emc-users] Code of Conduct

 On 6/29/21 RC wrote:
 Also, I changed my mind  ..

 hey all, can we still have that CoC? with that one rule in it that
said 
 something about not telling others what to do, or something like
that.

That, gentlemen, is exclusively and completely the CoC that the world
needs most..Who wants THE MANGEMENT to move in and exercise their
prejudices by pouring themover the heads of others?  Is it not better
for the list to be a bazaar? Let the dogmatistspeddling pedantic
orthodoxy go and build their temple elsewhere!(Yeah, the library
'puter let me have another 60 min Thanks, 'puter.)Erik

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[Emc-users] 'automatically' go halfway between 2 points

[R C]

Hello,


in linuxcnc,  is there an easy/automated way to get halfway between two 
points?   (Fort example, you'd touch off somewhere, move to some 
coordinate (x, y)  (or even (x, y, z)) and go inbetween right to the the 
middle of where you touched off and where the spindle is now?



thanks,


Ron



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Re: [Emc-users] Ethercat returning message disappear

[Dave Cole]

On 7/11/2021 1:03 PM, Chris Albertson wrote:

That said, Ethernet has been made to work on the Raspberry Pi "Pico", How
long until Ethercat runs on this $4 part?  The Pico is made by a non-profit
foundation, so the price will remain low



That is very interesting..

Probably not long!

Dave



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Re: [Emc-users] Ethercat returning message disappear

[Chris Albertson]

STM does sell some subsidized boards.  These are dirt cheap because they
want you to develop a product using the parts.   My favorite is the Nucleo
series This one sells for about $13.
st.com/en/evaluation-tools/nucleo-f411re.html
  It makes every
good motion controller.  It can handle several channels of steps and
encoder pulses at the "few MHz" level.  I think the reason for the low
prices is that the "f411" part was very wide application, so they want to
market it.  The market for Ethercat chips is tiny, so they don't want to
spend much to market it so they sell the board at full cost with no subsidy.

That said, Ethernet has been made to work on the Raspberry Pi "Pico", How
long until Ethercat runs on this $4 part?  The Pico is made by a non-profit
foundation, so the price will remain low

On Sun, Jul 11, 2021 at 9:34 AM John Dammeyer 
wrote:

> At $294 (out of stock too) that eval board is way more expensive than a
> STMBL kit which also can drive a motor with a much higher power supply
> voltage.
>
> I'm surprised that ST charges so much for something like that.  You'd
> think with their size they could produce demo boards for really cheap,
> people would use them as is and others would then develop products based on
> it.  But at that cost, one has to have a budget and a marketing plan to
> even consider starting.
>
> John
>
>
> > -Original Message-
> > From: Roland Jollivet [mailto:roland.jolli...@gmail.com]
> > Sent: July-11-21 9:00 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: [Emc-users] Ethercat returning message disappear
> >
> > No I don't but you might find this interesting. It was in an email I got
> > two days ago.
> > The software is downloadable;
> >
> > https://www.st.com/en/evaluation-tools/steval-
> >
> eth001v1.html?ecmp=tt21493_gl_enews_jun2021=stmDM44500=438016236=mrX5prLpL0WLPr+vcjBGHEiEOnoACPS
> > G9a4XfANkxEI=
> >
> >
> >
> > On Sun, 11 Jul 2021 at 16:37, Nicklas SB Karlsson  wrote:
> >
> > > Experimenting with Ethercat.
> > >
> > > Connecting three devices it work perfect. But with more there are cases
> > > then only some messages arrive back to master and some cases there no
> > > messages arrive back to master. Even though message do not arrive back
> > > as expected checking with broadcast write message arrive at last device
> > > and probing with oscilloscope I could see data is sent on Ethernet
> cable
> > > back towards computer. No sign of other communication problems except
> > > what I am pretty sure is ordinary Ethernet messages destroyed on
> purpose
> > > by nodes.
> > >
> > > Anyone else here have any experience with Ethercat?
> > >
> > >
> > > Nicklas Karlsson
> > >
> > >
> > >
> > > ___
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> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > >
> >
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>
>
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-- 

Chris Albertson
Redondo Beach, California

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Re: [Emc-users] Ethercat returning message disappear

[John Dammeyer]

At $294 (out of stock too) that eval board is way more expensive than a STMBL 
kit which also can drive a motor with a much higher power supply voltage.

I'm surprised that ST charges so much for something like that.  You'd think 
with their size they could produce demo boards for really cheap, people would 
use them as is and others would then develop products based on it.  But at that 
cost, one has to have a budget and a marketing plan to even consider starting.

John


> -Original Message-
> From: Roland Jollivet [mailto:roland.jolli...@gmail.com]
> Sent: July-11-21 9:00 AM
> To: Enhanced Machine Controller (EMC)
> Subject: [Emc-users] Ethercat returning message disappear
> 
> No I don't but you might find this interesting. It was in an email I got
> two days ago.
> The software is downloadable;
> 
> https://www.st.com/en/evaluation-tools/steval-
> eth001v1.html?ecmp=tt21493_gl_enews_jun2021=stmDM44500=438016236=mrX5prLpL0WLPr+vcjBGHEiEOnoACPS
> G9a4XfANkxEI=
> 
> 
> 
> On Sun, 11 Jul 2021 at 16:37, Nicklas SB Karlsson  wrote:
> 
> > Experimenting with Ethercat.
> >
> > Connecting three devices it work perfect. But with more there are cases
> > then only some messages arrive back to master and some cases there no
> > messages arrive back to master. Even though message do not arrive back
> > as expected checking with broadcast write message arrive at last device
> > and probing with oscilloscope I could see data is sent on Ethernet cable
> > back towards computer. No sign of other communication problems except
> > what I am pretty sure is ordinary Ethernet messages destroyed on purpose
> > by nodes.
> >
> > Anyone else here have any experience with Ethercat?
> >
> >
> > Nicklas Karlsson
> >
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> 
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[Emc-users] Ethercat returning message disappear

[Roland Jollivet]

No I don't but you might find this interesting. It was in an email I got
two days ago.
The software is downloadable;

https://www.st.com/en/evaluation-tools/steval-eth001v1.html?ecmp=tt21493_gl_enews_jun2021=stmDM44500=438016236=mrX5prLpL0WLPr+vcjBGHEiEOnoACPSG9a4XfANkxEI=



On Sun, 11 Jul 2021 at 16:37, Nicklas SB Karlsson  wrote:

> Experimenting with Ethercat.
>
> Connecting three devices it work perfect. But with more there are cases
> then only some messages arrive back to master and some cases there no
> messages arrive back to master. Even though message do not arrive back
> as expected checking with broadcast write message arrive at last device
> and probing with oscilloscope I could see data is sent on Ethernet cable
> back towards computer. No sign of other communication problems except
> what I am pretty sure is ordinary Ethernet messages destroyed on purpose
> by nodes.
>
> Anyone else here have any experience with Ethercat?
>
>
> Nicklas Karlsson
>
>
>
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[Emc-users] Ethercat returning message disappear

[Nicklas SB Karlsson]

Experimenting with Ethercat.

Connecting three devices it work perfect. But with more there are cases 
then only some messages arrive back to master and some cases there no 
messages arrive back to master. Even though message do not arrive back 
as expected checking with broadcast write message arrive at last device 
and probing with oscilloscope I could see data is sent on Ethernet cable 
back towards computer. No sign of other communication problems except 
what I am pretty sure is ordinary Ethernet messages destroyed on purpose 
by nodes.


Anyone else here have any experience with Ethercat?


Nicklas Karlsson



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Re: [Emc-users] Setting tool heights

[Les Newell]

In the manual page (F3) enter the tool Z position (e.g 0 if you are 
using the paper trick) and press the tool offset button. I personally 
don't like using paper. It's easy to make a mistake and damage your 
tool/work. I prefer to use a round bar of a known diameter (e.g the 
shank of an old tool). Jog down to a height less then the diameter of 
your bar then slowly jog up while trying to pass the bar under the tool. 
When it passes through you are at the bar diameter. Enter the bar 
diameter as the Z offset. This can be very accurate if you are careful.


Les

On 11/07/2021 08:37, John Dammeyer wrote:

I've been watching the Tormach Path Pilot videos on tool height and offsets.
https://youtu.be/BoIB_Fatt44
https://youtu.be/2EIQo8g4RVQ
 
Very similar to what is available in MACH.
  
Is there a graphical interface for AXIS that lets you enter in the tool height values or use the machine to generate them and enter into the appropriate tables?
  
Thanks

John
  
  
  
  
"ELS! Nothing else works as well for your Lathe"

Automation Artisans Inc.
www dot autoartisans dot com
  


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[Emc-users] Setting tool heights

[John Dammeyer]

I've been watching the Tormach Path Pilot videos on tool height and offsets.
https://youtu.be/BoIB_Fatt44
https://youtu.be/2EIQo8g4RVQ

Very similar to what is available in MACH.
 
Is there a graphical interface for AXIS that lets you enter in the tool height 
values or use the machine to generate them and enter into the appropriate 
tables?  
 
Thanks
John
 
 
 
 
"ELS! Nothing else works as well for your Lathe"
Automation Artisans Inc.
www dot autoartisans dot com 
 

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