[Emc-users] CAD for LinuxCNC

[Roland Jollivet]

A good example to illustrate the problem is to imagine a tapered slot in a
block
The taper is 5mm deep, 100m long, and starts at 12mm wide, and tapers to 5mm

So a 10mm cutter as a roughing cut will only remove a small portion
But if you now select a 8mm cutter, it will plough down into the 10mm >
portion > 8mm without knowing there is material there.

This is obviously a simple example, but if you were milling a 3D model of
say, a rose, it's very difficult to address each pocket piecemeal.
And this is not really a problem with soft wood or plastic.

My idea of doing the .stl in reverse is not to simply add layers, but to
take the final model and add 'material' to the .stl as per the cutters
passage.
The incremented .stl is modified exactly by the amount 'cut', as in where
the cutter passes, like extruding a bead over the part. This becomes the
input model for the next, larger cutter, and is incremented until the stock
block size is reached.




On 25 July 2018 at 02:45, Chris Albertson  wrote:

> It is not clear if your method would work in the general case.  "rest"
> seems easy of doing a "waterline" type operate on a 3-axis mill.   But what
> about a 5-axis machine?
>
> I think the best way to program a rest tool path is to first transform the
> part into a larger part thais is only roughed out.   You might do this by
> moving every surface out in the normal direction my some amount like 1mm.
> The you make that part using a roughing cutter.Then swap cutters and
> make the part as per the 3D model. I don't think you need simulation.
> But you do need to be able to move the surface out in the direction of the
> surface normals.
>
> On Tue, Jul 24, 2018 at 1:24 PM Roland Jollivet  >
> wrote:
>
> > On 24 July 2018 at 22:02, Sebastian Kuzminsky 
> > wrote:
> >
> > > On Tue, Jul 24, 2018 at 1:45 PM Valerio Bellizzomi  >
> > > wrote:
> > > > On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> > > > > I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> > > > >
> > > > > >From what I see, neither seem to do rest milling (rest machining),
> > > which is
> > > > > a limitation of most of the free packages and makes it pretty
> useless
> > > for
> > > > > multiple cutters unless you are extremely vigilant on what was not
> > cut.
> > > > >
> > > > > Or do they do rest milling?
> > > >
> > > > I have no idea of what it is, but there is a feature request:
> > > >
> > > > https://github.com/SebKuzminsky/pycam/issues/120
> > >
> > > I think "rest machining" refers to doing initial machining passes with
> > > a large-diameter cutter, having the CAM keep track of the remaining
> > > material that needs to be removed, and then doing finishing passes
> > > with a smaller-diameter cutter to remove that remaining material. For
> > > example, think of a large pocket with sharp corners, roughed out with
> > > a large endmill and then finished with a small endmill.
> > >
> > > The feature request you linked above is different (and simpler): it's
> > > just to do "normal" machining operations on *select* features in the
> > > model, instead of applying the operations to *all* features of the
> > > model.
> > >
> >
> > Yes. When milling steel it's very easy to snap a 3mm cutter because the
> > previous 6mm cutter couldn't go into a dip, and the path is using the
> final
> > geometry as the reference model for the 3mm cutter.
> >
> > I've often wondered how hard it would be to program 'rest machining'
> > I think stl format is fine for most hobbyists, and offers a simpler way
> of
> > keeping track of a solid in software.
> >
> > A method I envisage is as follows;
> > Say operations are chosen as follows;
> > - first a 10mm roughing, then
> > - 3mm finishing with 0.2mm remaining, then
> > - 1mm final pass, 0mm remaining
> >
> > Once all the parameters are selected, the software creates a machining
> > model in Reverse...
> > First it takes the final .stl and adds on a 0.2mm layer, by computing
> > triangles according to the path of the 1mm cutter parameters, then
> > adds the 3mm passes, and so on until the full stock has been generated.
> > Obviously now these operations are run in reverse again to create a
> forward
> > Gcode file.
> >
> > Possible?
> >
> > 
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>
>
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> Chris Albertson
> Redondo Beach, California
> 
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Re: [Emc-users] CAD for LinuxCNC

[Valerio Bellizzomi]

On Tue, 2018-07-24 at 17:45 -0700, Chris Albertson wrote:
> It is not clear if your method would work in the general case.  "rest"
> seems easy of doing a "waterline" type operate on a 3-axis mill.   But what
> about a 5-axis machine?
> 
> I think the best way to program a rest tool path is to first transform the
> part into a larger part thais is only roughed out.   You might do this by
> moving every surface out in the normal direction my some amount like 1mm.
> The you make that part using a roughing cutter.Then swap cutters and
> make the part as per the 3D model. I don't think you need simulation.
> But you do need to be able to move the surface out in the direction of the
> surface normals.
> 
> On Tue, Jul 24, 2018 at 1:24 PM Roland Jollivet 
> wrote:
> 
> > On 24 July 2018 at 22:02, Sebastian Kuzminsky 
> > wrote:
> >
> > > On Tue, Jul 24, 2018 at 1:45 PM Valerio Bellizzomi 
> > > wrote:
> > > > On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> > > > > I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> > > > >
> > > > > >From what I see, neither seem to do rest milling (rest machining),
> > > which is
> > > > > a limitation of most of the free packages and makes it pretty useless
> > > for
> > > > > multiple cutters unless you are extremely vigilant on what was not
> > cut.
> > > > >
> > > > > Or do they do rest milling?
> > > >
> > > > I have no idea of what it is, but there is a feature request:
> > > >
> > > > https://github.com/SebKuzminsky/pycam/issues/120
> > >
> > > I think "rest machining" refers to doing initial machining passes with
> > > a large-diameter cutter, having the CAM keep track of the remaining
> > > material that needs to be removed, and then doing finishing passes
> > > with a smaller-diameter cutter to remove that remaining material. For
> > > example, think of a large pocket with sharp corners, roughed out with
> > > a large endmill and then finished with a small endmill.
> > >
> > > The feature request you linked above is different (and simpler): it's
> > > just to do "normal" machining operations on *select* features in the
> > > model, instead of applying the operations to *all* features of the
> > > model.
> > >
> >
> > Yes. When milling steel it's very easy to snap a 3mm cutter because the
> > previous 6mm cutter couldn't go into a dip, and the path is using the final
> > geometry as the reference model for the 3mm cutter.
> >
> > I've often wondered how hard it would be to program 'rest machining'
> > I think stl format is fine for most hobbyists, and offers a simpler way of
> > keeping track of a solid in software.
> >
> > A method I envisage is as follows;
> > Say operations are chosen as follows;
> > - first a 10mm roughing, then
> > - 3mm finishing with 0.2mm remaining, then
> > - 1mm final pass, 0mm remaining
> >
> > Once all the parameters are selected, the software creates a machining
> > model in Reverse...
> > First it takes the final .stl and adds on a 0.2mm layer, by computing
> > triangles according to the path of the 1mm cutter parameters, then
> > adds the 3mm passes, and so on until the full stock has been generated.
> > Obviously now these operations are run in reverse again to create a forward
> > Gcode file.
> >
> > Possible?


I have asked for the possibility to extend PyCAM to 5 axis but got no
response.

But I think it is possible.



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Re: [Emc-users] CAD for LinuxCNC

[Valerio Bellizzomi]

On Tue, 2018-07-24 at 14:02 -0600, Sebastian Kuzminsky wrote:
> On Tue, Jul 24, 2018 at 1:45 PM Valerio Bellizzomi  wrote:
> > On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> > > I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> > >
> > > >From what I see, neither seem to do rest milling (rest machining), which 
> > > >is
> > > a limitation of most of the free packages and makes it pretty useless for
> > > multiple cutters unless you are extremely vigilant on what was not cut.
> > >
> > > Or do they do rest milling?
> >
> > I have no idea of what it is, but there is a feature request:
> >
> > https://github.com/SebKuzminsky/pycam/issues/120
> 
> I think "rest machining" refers to doing initial machining passes with
> a large-diameter cutter, having the CAM keep track of the remaining
> material that needs to be removed, and then doing finishing passes
> with a smaller-diameter cutter to remove that remaining material. For
> example, think of a large pocket with sharp corners, roughed out with
> a large endmill and then finished with a small endmill.
> 
> The feature request you linked above is different (and simpler): it's
> just to do "normal" machining operations on *select* features in the
> model, instead of applying the operations to *all* features of the
> model.


Well then, PyCAM has rough and fine operations.



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Re: [Emc-users] Fwd: Re: CAD for LinuxCNC

[Dan Bloomquist]

Przemek Klosowski wrote:

I always wondered if a small LCD projector would be enough to expose a
typical photosensitive PCB--they can be had for not much more than $100,
and are surprisingly bright at small distance (of course they aren't worth
much for what they are solf for, displaying onto large walls:)
If that worked, it would be easy and fast (no scanning, just project your
gerbers)


Hi Przemek,
Great idea. So if you are looking for .1mm resolution, you might get 
away with this if the board is no larger than 60x80 mm. Assuming 600x800 
dots and perfect, (the word escapes me), dot to exposure transfer. For 
through hole, dips, then the resolution does not have to be so tight. 
Nest is to find out if the wavelength of the blue emitters is short 
enough to get the job done.


Best, Dan.


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Re: [Emc-users] Fwd: Re: CAD for LinuxCNC

[bari]

The typical photoresists used for PCB's are sensitive from UV up to
~400nm. A bit too low for an LCD since most of the light used behind the
LCD mask will be absorbed by the LCD.

You can use a DLP projector with those photoresists. They work even
better with the color wheels removed, but it does shorten the life of
the DLP.

Another option is using photoresists that cure in the visible spectrum
>400nm with an LCD or DLP projector.

DLP projectors are even used with inverse microscopes for lithography
down to ~1um features.
https://gmwgroup.harvard.edu/pubs/pdf/757.pdf

-Bari

On 07/24/2018 09:25 PM, Przemek Klosowski wrote:
> I always wondered if a small LCD projector would be enough to expose a
> typical photosensitive PCB--they can be had for not much more than $100,
> and are surprisingly bright at small distance (of course they aren't worth
> much for what they are solf for, displaying onto large walls:)
> If that worked, it would be easy and fast (no scanning, just project your
> gerbers)
>
> On Tue, Jul 24, 2018 at 10:07 PM John Dammeyer 
> wrote:
>
>> I like the idea of using a small laser for exposing the PCB.  I already
>> have
>> a CNC router with roller skate bearings (it doesn't yet use the linear
>> bearings and rails I bought to upgrade it).  Might be nicer than milling
>> the
>> PCB although still need to drill holes too.
>>
>> John
>>
>>
>>> -Original Message-
>>> From: Dan Bloomquist [mailto:z...@lakeweb.net]
>>> Sent: July-24-18 6:53 PM
>>> To: Enhanced Machine Controller (EMC)
>>> Subject: [Emc-users] Fwd: Re: CAD for LinuxCNC
>>>
>>>
>>>
>>> John Dammeyer wrote:
> I've been using Fusion 360 for a few years now. The license is
> $300/year. They have a post processor for linuxcnc so the CAM directly
> generates g-code that I can take out to the machine. As an example, I
> had to cut a couple of these from 303:
> 
 Hi Dan,
 Sweet.  Are you running a MAC or PC with windows for Fusion?
 John
>>> Hi John,
>>> Thanks. This is my wife's and my business.
>>> 
>>>
>>> My desk machine, where Fusion lives, is windows 7. Linux is on my mill
>>> and I have a couple of beaglebone blacks.
>>>
>>> But I have to use windows as it is my day job. As far as Apple goes, I
>>> was all about it back in the Apple I and II days. But they prioritized
>>> when they went to Mac, so I lost interest in Apple. Now that there is
>>> Linux, who needs apple :)
>>>
>>> Best, Dan.
>>>
>>> P.S. I like this:
>>> 
>>> I would build the machine differently. But great thing is, you can use
>>> the same machine to do a photo sensitive solder mask as a next step!
>>>
>>>
>>>
>> 
>> --
>>> Check out the vibrant tech community on one of the world's most
>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>> ___
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>>> Emc-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>>
>> --
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>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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Re: [Emc-users] Fwd: Re: CAD for LinuxCNC

[Gene Heskett]

On Tuesday 24 July 2018 22:25:51 Przemek Klosowski wrote:

> I always wondered if a small LCD projector would be enough to expose a
> typical photosensitive PCB--they can be had for not much more than
> $100, and are surprisingly bright at small distance (of course they
> aren't worth much for what they are solf for, displaying onto large
> walls:) If that worked, it would be easy and fast (no scanning, just
> project your gerbers)
>
I don't see why not, IF you could find one with a truely rectilinear 
lens. Most of those that I have seen have had as much as 5% pincushion, 
and that along the edge of a board where you intended to fit say a 50 
pin interface connector, could easily be a whole pin spacing out of 
whack and you'd never get a connector to seat in holes that far off the 
grid pattern. Locate it on the grid might work as the smaller parts in 
the middle probably wouldn't care that much if the footprint was shrunk 
that 5%. And a long connector would flex enough to still mate with its 
opposite gender. Bigger 80 pin square tsop stuff would care though. Good 
rectilinear Lenses like that are easily way more than the whole 
projectors $ though.
> On Tue, Jul 24, 2018 at 10:07 PM John Dammeyer
> 
>
> wrote:
> > I like the idea of using a small laser for exposing the PCB.  I
> > already have
> > a CNC router with roller skate bearings (it doesn't yet use the
> > linear bearings and rails I bought to upgrade it).  Might be nicer
> > than milling the
> > PCB although still need to drill holes too.
> >
> > John
> >
> > > -Original Message-
> > > From: Dan Bloomquist [mailto:z...@lakeweb.net]
> > > Sent: July-24-18 6:53 PM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: [Emc-users] Fwd: Re: CAD for LinuxCNC
> > >
> > > John Dammeyer wrote:
> > > >> I've been using Fusion 360 for a few years now. The license is
> > > >> $300/year. They have a post processor for linuxcnc so the CAM
> > > >> directly generates g-code that I can take out to the machine.
> > > >> As an example, I had to cut a couple of these from 303:
> > > >> 
> > > >
> > > > Hi Dan,
> > > > Sweet.  Are you running a MAC or PC with windows for Fusion?
> > > > John
> > >
> > > Hi John,
> > > Thanks. This is my wife's and my business.
> > > 
> > >
> > > My desk machine, where Fusion lives, is windows 7. Linux is on my
> > > mill and I have a couple of beaglebone blacks.
> > >
> > > But I have to use windows as it is my day job. As far as Apple
> > > goes, I was all about it back in the Apple I and II days. But they
> > > prioritized when they went to Mac, so I lost interest in Apple.
> > > Now that there is Linux, who needs apple :)
> > >
> > > Best, Dan.
> > >
> > > P.S. I like this:
> > > 
> > > I would build the machine differently. But great thing is, you can
> > > use the same machine to do a photo sensitive solder mask as a next
> > > step!
> >
> > 
> > --
> >
> > > Check out the vibrant tech community on one of the world's most
> > > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > 
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-- 
Cheers, Gene Heskett
--
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] Fwd: Re: CAD for LinuxCNC

[Przemek Klosowski]

I always wondered if a small LCD projector would be enough to expose a
typical photosensitive PCB--they can be had for not much more than $100,
and are surprisingly bright at small distance (of course they aren't worth
much for what they are solf for, displaying onto large walls:)
If that worked, it would be easy and fast (no scanning, just project your
gerbers)

On Tue, Jul 24, 2018 at 10:07 PM John Dammeyer 
wrote:

> I like the idea of using a small laser for exposing the PCB.  I already
> have
> a CNC router with roller skate bearings (it doesn't yet use the linear
> bearings and rails I bought to upgrade it).  Might be nicer than milling
> the
> PCB although still need to drill holes too.
>
> John
>
>
> > -Original Message-
> > From: Dan Bloomquist [mailto:z...@lakeweb.net]
> > Sent: July-24-18 6:53 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: [Emc-users] Fwd: Re: CAD for LinuxCNC
> >
> >
> >
> > John Dammeyer wrote:
> > >> I've been using Fusion 360 for a few years now. The license is
> > >> $300/year. They have a post processor for linuxcnc so the CAM directly
> > >> generates g-code that I can take out to the machine. As an example, I
> > >> had to cut a couple of these from 303:
> > >> 
> > > Hi Dan,
> > > Sweet.  Are you running a MAC or PC with windows for Fusion?
> > > John
> >
> > Hi John,
> > Thanks. This is my wife's and my business.
> > 
> >
> > My desk machine, where Fusion lives, is windows 7. Linux is on my mill
> > and I have a couple of beaglebone blacks.
> >
> > But I have to use windows as it is my day job. As far as Apple goes, I
> > was all about it back in the Apple I and II days. But they prioritized
> > when they went to Mac, so I lost interest in Apple. Now that there is
> > Linux, who needs apple :)
> >
> > Best, Dan.
> >
> > P.S. I like this:
> > 
> > I would build the machine differently. But great thing is, you can use
> > the same machine to do a photo sensitive solder mask as a next step!
> >
> >
> >
>
> 
> --
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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>
>
>
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Re: [Emc-users] Fwd: Re: CAD for LinuxCNC

[John Dammeyer]

I like the idea of using a small laser for exposing the PCB.  I already have
a CNC router with roller skate bearings (it doesn't yet use the linear
bearings and rails I bought to upgrade it).  Might be nicer than milling the
PCB although still need to drill holes too.

John


> -Original Message-
> From: Dan Bloomquist [mailto:z...@lakeweb.net]
> Sent: July-24-18 6:53 PM
> To: Enhanced Machine Controller (EMC)
> Subject: [Emc-users] Fwd: Re: CAD for LinuxCNC
> 
> 
> 
> John Dammeyer wrote:
> >> I've been using Fusion 360 for a few years now. The license is
> >> $300/year. They have a post processor for linuxcnc so the CAM directly
> >> generates g-code that I can take out to the machine. As an example, I
> >> had to cut a couple of these from 303:
> >> 
> > Hi Dan,
> > Sweet.  Are you running a MAC or PC with windows for Fusion?
> > John
> 
> Hi John,
> Thanks. This is my wife's and my business.
> 
> 
> My desk machine, where Fusion lives, is windows 7. Linux is on my mill
> and I have a couple of beaglebone blacks.
> 
> But I have to use windows as it is my day job. As far as Apple goes, I
> was all about it back in the Apple I and II days. But they prioritized
> when they went to Mac, so I lost interest in Apple. Now that there is
> Linux, who needs apple :)
> 
> Best, Dan.
> 
> P.S. I like this:
> 
> I would build the machine differently. But great thing is, you can use
> the same machine to do a photo sensitive solder mask as a next step!
> 
> 
>

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Re: [Emc-users] CAD for LinuxCNC

[John Dammeyer]

I'm not sure if this is what is meant by "rest"  but my AlibreCAM (Mecsoft
VisualCAM) lets me do this I think.

I've created a small part with some curves and recesses.  No point to it
other than I made it up as I went along using AlibreCAD. 

Then I started AlibreCAM and set up a roughing and finishing operation.  I
believe the roughing leaves a tiny bit not milled. I used the same toolbit
(6.35mm for both).
http://www.autoartisans.com/mill/Tray1-Roughing.jpg
The roughing cleans out the inside and outside of the block then the
finishing just cleans the edges.  For the roughing step down was 10% of tool
diameter so there are a lot of passes.  Probably should have done it with
25% to 50% for this example.
http://www.autoartisans.com/mill/Tray1-Finishing.jpg

Is this what is meant by "REST"?

Obviously I'd want to use a ball mill for the curved section in the center
and the fillets on the outside to get the best finish.  But the 3D finishing
pass only covers the edges.   This was all whipped out quickly and since I'm
way far from even close to knowing what I'm doing there may well be better
ways.

John


> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: July-24-18 5:45 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] CAD for LinuxCNC
> 
> It is not clear if your method would work in the general case.  "rest"
> seems easy of doing a "waterline" type operate on a 3-axis mill.   But
what
> about a 5-axis machine?
> 
> I think the best way to program a rest tool path is to first transform the
> part into a larger part thais is only roughed out.   You might do this by
> moving every surface out in the normal direction my some amount like 1mm.
> The you make that part using a roughing cutter.Then swap cutters and
> make the part as per the 3D model. I don't think you need simulation.
> But you do need to be able to move the surface out in the direction of the
> surface normals.
> 
> On Tue, Jul 24, 2018 at 1:24 PM Roland Jollivet

> wrote:
> 
> > On 24 July 2018 at 22:02, Sebastian Kuzminsky 
> > wrote:
> >
> > > On Tue, Jul 24, 2018 at 1:45 PM Valerio Bellizzomi

> > > wrote:
> > > > On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> > > > > I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> > > > >
> > > > > >From what I see, neither seem to do rest milling (rest
machining),
> > > which is
> > > > > a limitation of most of the free packages and makes it pretty
useless
> > > for
> > > > > multiple cutters unless you are extremely vigilant on what was not
> > cut.
> > > > >
> > > > > Or do they do rest milling?
> > > >
> > > > I have no idea of what it is, but there is a feature request:
> > > >
> > > > https://github.com/SebKuzminsky/pycam/issues/120
> > >
> > > I think "rest machining" refers to doing initial machining passes with
> > > a large-diameter cutter, having the CAM keep track of the remaining
> > > material that needs to be removed, and then doing finishing passes
> > > with a smaller-diameter cutter to remove that remaining material. For
> > > example, think of a large pocket with sharp corners, roughed out with
> > > a large endmill and then finished with a small endmill.
> > >
> > > The feature request you linked above is different (and simpler): it's
> > > just to do "normal" machining operations on *select* features in the
> > > model, instead of applying the operations to *all* features of the
> > > model.
> > >
> >
> > Yes. When milling steel it's very easy to snap a 3mm cutter because the
> > previous 6mm cutter couldn't go into a dip, and the path is using the
final
> > geometry as the reference model for the 3mm cutter.
> >
> > I've often wondered how hard it would be to program 'rest machining'
> > I think stl format is fine for most hobbyists, and offers a simpler way
of
> > keeping track of a solid in software.
> >
> > A method I envisage is as follows;
> > Say operations are chosen as follows;
> > - first a 10mm roughing, then
> > - 3mm finishing with 0.2mm remaining, then
> > - 1mm final pass, 0mm remaining
> >
> > Once all the parameters are selected, the software creates a machining
> > model in Reverse...
> > First it takes the final .stl and adds on a 0.2mm layer, by computing
> > triangles according to the path of the 1mm cutter parameters, then
> > adds the 3mm passes, and so on until the full stock has been generated.
> > Obviously now these operations are run in reverse again to create a
forward
> > Gcode file.
> >
> > Possible?
> >
> >

--
> > Check out the vibrant tech community on one of the world's most
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> >
> 
> 
> --
> 
> Chris Albertson
> Redondo Beach, California
>
--

[Emc-users] Fwd: Re: CAD for LinuxCNC

[Dan Bloomquist]

John Dammeyer wrote:

I've been using Fusion 360 for a few years now. The license is
$300/year. They have a post processor for linuxcnc so the CAM directly
generates g-code that I can take out to the machine. As an example, I
had to cut a couple of these from 303:


Hi Dan,
Sweet.  Are you running a MAC or PC with windows for Fusion?
John


Hi John,
Thanks. This is my wife's and my business.


My desk machine, where Fusion lives, is windows 7. Linux is on my mill
and I have a couple of beaglebone blacks.

But I have to use windows as it is my day job. As far as Apple goes, I
was all about it back in the Apple I and II days. But they prioritized
when they went to Mac, so I lost interest in Apple. Now that there is
Linux, who needs apple :)

Best, Dan.

P.S. I like this:

I would build the machine differently. But great thing is, you can use
the same machine to do a photo sensitive solder mask as a next step!


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Re: [Emc-users] CAD for LinuxCNC

[Jon Elson]

On 07/24/2018 01:08 PM, Valerio Bellizzomi wrote:

On Tue, 2018-07-24 at 11:14 -0500, Jon Elson wrote:

On 07/24/2018 07:37 AM, Valerio Bellizzomi wrote:

I use FreeCAD and Blender for the modeling and PyCAM to
convert to gcode all on Debian

I'd like to hear more about this.  I tried the VERY latest
FreeCAD a couple months ago and it seemed to have some
problems.  So, we then went with Inventor (Autodesk).  That
works pretty well, but can be very complicated for an
occasional user.

I'm thinking maybe that I should not have tried the very
latest release of FreeCAD, and maybe let the new bugs get
fixed first.  So, what version are you using?  What source
of info did you find to learn to use it?

Thanks,

Jon

On which system are you having trouble?

I use Freecad version 16 on debian, I have designed a cnc machine with
it, but I do not use the included cam module which is at first stage I
think


I downloaded ver 0.17, which was only a couple days old when 
I got it.  Probably I SHOULD have tried with ver 0.16   I 
will have to try that at home and see if I do better.


Jon

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Re: [Emc-users] CAD for LinuxCNC, Autodesk

[Jon Elson]

On 07/24/2018 11:39 AM, Nicklas Karlsson wrote:

On Tue, 24 Jul 2018 11:14:50 -0500
Jon Elson  wrote:


On 07/24/2018 07:37 AM, Valerio Bellizzomi wrote:

I use FreeCAD and Blender for the modeling and PyCAM to
convert to gcode all on Debian

I'd like to hear more about this.  I tried the VERY latest
FreeCAD a couple months ago and it seemed to have some
problems.  So, we then went with Inventor (Autodesk).  That
works pretty well, ...

And i also expect it's rather expensive, or?



Work is a University, so they have a site license.

I have no idea what Inventor costs, but I can imagine it is 
expensive.  FreeCAD is clearly meant to be a drop-in 
replacement for Inventor, but I had problems with it.  I 
also have had a LOT of problems learning Inventor, it is 
plenty complicated.


Jon

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Re: [Emc-users] CAD for LinuxCNC

[Ken Strauss]

Moving each surface out by a certain amount is not very efficient for many
cases. Consider cutting a rectangular pocket having small radius corners.
The efficient approach would use a large cutter to clear most of the waste
and a small cutter for the corners. Your suggestion would require that the
entire perimeter be cut using a small cutter.

> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: Tuesday, July 24, 2018 8:45 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] CAD for LinuxCNC
>
> It is not clear if your method would work in the general case.  "rest"
> seems easy of doing a "waterline" type operate on a 3-axis mill.   But
what
> about a 5-axis machine?
>
> I think the best way to program a rest tool path is to first transform the
> part into a larger part thais is only roughed out.   You might do this by
> moving every surface out in the normal direction my some amount like 1mm.
> The you make that part using a roughing cutter.Then swap cutters and
> make the part as per the 3D model. I don't think you need simulation.
> But you do need to be able to move the surface out in the direction of the
> surface normals.
>
> On Tue, Jul 24, 2018 at 1:24 PM Roland Jollivet

> wrote:
>
> > On 24 July 2018 at 22:02, Sebastian Kuzminsky 
> > wrote:
> >
> > > On Tue, Jul 24, 2018 at 1:45 PM Valerio Bellizzomi

> > > wrote:
> > > > On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> > > > > I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> > > > >
> > > > > >From what I see, neither seem to do rest milling (rest
machining),
> > > which is
> > > > > a limitation of most of the free packages and makes it pretty
useless
> > > for
> > > > > multiple cutters unless you are extremely vigilant on what was not
> > cut.
> > > > >
> > > > > Or do they do rest milling?
> > > >
> > > > I have no idea of what it is, but there is a feature request:
> > > >
> > > > https://github.com/SebKuzminsky/pycam/issues/120
> > >
> > > I think "rest machining" refers to doing initial machining passes with
> > > a large-diameter cutter, having the CAM keep track of the remaining
> > > material that needs to be removed, and then doing finishing passes
> > > with a smaller-diameter cutter to remove that remaining material. For
> > > example, think of a large pocket with sharp corners, roughed out with
> > > a large endmill and then finished with a small endmill.
> > >
> > > The feature request you linked above is different (and simpler): it's
> > > just to do "normal" machining operations on *select* features in the
> > > model, instead of applying the operations to *all* features of the
> > > model.
> > >
> >
> > Yes. When milling steel it's very easy to snap a 3mm cutter because the
> > previous 6mm cutter couldn't go into a dip, and the path is using the
final
> > geometry as the reference model for the 3mm cutter.
> >
> > I've often wondered how hard it would be to program 'rest machining'
> > I think stl format is fine for most hobbyists, and offers a simpler way
of
> > keeping track of a solid in software.
> >
> > A method I envisage is as follows;
> > Say operations are chosen as follows;
> > - first a 10mm roughing, then
> > - 3mm finishing with 0.2mm remaining, then
> > - 1mm final pass, 0mm remaining
> >
> > Once all the parameters are selected, the software creates a machining
> > model in Reverse...
> > First it takes the final .stl and adds on a 0.2mm layer, by computing
> > triangles according to the path of the 1mm cutter parameters, then
> > adds the 3mm passes, and so on until the full stock has been generated.
> > Obviously now these operations are run in reverse again to create a
forward
> > Gcode file.
> >
> > Possible?
> >
> >

--
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
>
> --
>
> Chris Albertson
> Redondo Beach, California
>

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Re: [Emc-users] CAD for LinuxCNC

[Chris Albertson]

It is not clear if your method would work in the general case.  "rest"
seems easy of doing a "waterline" type operate on a 3-axis mill.   But what
about a 5-axis machine?

I think the best way to program a rest tool path is to first transform the
part into a larger part thais is only roughed out.   You might do this by
moving every surface out in the normal direction my some amount like 1mm.
The you make that part using a roughing cutter.Then swap cutters and
make the part as per the 3D model. I don't think you need simulation.
But you do need to be able to move the surface out in the direction of the
surface normals.

On Tue, Jul 24, 2018 at 1:24 PM Roland Jollivet 
wrote:

> On 24 July 2018 at 22:02, Sebastian Kuzminsky 
> wrote:
>
> > On Tue, Jul 24, 2018 at 1:45 PM Valerio Bellizzomi 
> > wrote:
> > > On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> > > > I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> > > >
> > > > >From what I see, neither seem to do rest milling (rest machining),
> > which is
> > > > a limitation of most of the free packages and makes it pretty useless
> > for
> > > > multiple cutters unless you are extremely vigilant on what was not
> cut.
> > > >
> > > > Or do they do rest milling?
> > >
> > > I have no idea of what it is, but there is a feature request:
> > >
> > > https://github.com/SebKuzminsky/pycam/issues/120
> >
> > I think "rest machining" refers to doing initial machining passes with
> > a large-diameter cutter, having the CAM keep track of the remaining
> > material that needs to be removed, and then doing finishing passes
> > with a smaller-diameter cutter to remove that remaining material. For
> > example, think of a large pocket with sharp corners, roughed out with
> > a large endmill and then finished with a small endmill.
> >
> > The feature request you linked above is different (and simpler): it's
> > just to do "normal" machining operations on *select* features in the
> > model, instead of applying the operations to *all* features of the
> > model.
> >
>
> Yes. When milling steel it's very easy to snap a 3mm cutter because the
> previous 6mm cutter couldn't go into a dip, and the path is using the final
> geometry as the reference model for the 3mm cutter.
>
> I've often wondered how hard it would be to program 'rest machining'
> I think stl format is fine for most hobbyists, and offers a simpler way of
> keeping track of a solid in software.
>
> A method I envisage is as follows;
> Say operations are chosen as follows;
> - first a 10mm roughing, then
> - 3mm finishing with 0.2mm remaining, then
> - 1mm final pass, 0mm remaining
>
> Once all the parameters are selected, the software creates a machining
> model in Reverse...
> First it takes the final .stl and adds on a 0.2mm layer, by computing
> triangles according to the path of the 1mm cutter parameters, then
> adds the 3mm passes, and so on until the full stock has been generated.
> Obviously now these operations are run in reverse again to create a forward
> Gcode file.
>
> Possible?
>
> --
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California
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Re: [Emc-users] CAD for LinuxCNC

[Ken Strauss]

FYI, Cut2d has a similar capability.

> -Original Message-
> From: Marcus Bowman [mailto:marcus.bow...@visible.eclipse.co.uk]
> Sent: Tuesday, July 24, 2018 5:24 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] CAD for LinuxCNC
>
>
> On 24 Jul 2018, at 21:02, Sebastian Kuzminsky wrote:
>
> > I think "rest machining" refers to doing initial machining passes with
> > a large-diameter cutter, having the CAM keep track of the remaining
> > material that needs to be removed, and then doing finishing passes
> > with a smaller-diameter cutter to remove that remaining material. For
> > example, think of a large pocket with sharp corners, roughed out with
> > a large endmill and then finished with a small endmill.
> >
> This sounds like  what VCarve Pro does. It asks if you want to rough out
using a
> larger diameter cutter, then generates two programs via the
post-processor:
> one for the roughing operation (using the large tool), and the other for
the
> finishing (with a smaller tool for the fine detail). The user chooses and
specifies
> both tools before the software calculaltes the paths.
> It generally works ok, although I have run the odd job where there are
> artefacts left by the roughing cut which are not fully removed using the
smaller
> cutter.
>
> Marcus
>
>
>
>

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Re: [Emc-users] CAD for LinuxCNC

[andy pugh]

On 24 July 2018 at 21:02, Sebastian Kuzminsky  wrote:

> I think "rest machining" refers to doing initial machining passes with
> a large-diameter cutter, having the CAM keep track of the remaining
> material that needs to be removed, and then doing finishing passes
> with a smaller-diameter cutter to remove that remaining material.

More generally it is using the stock remaining from the previous
operations as the input to the current operation.


-- 
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, 1916

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Re: [Emc-users] parallel ports configuration

[yomin estiven jaramillo munera]

Hi Peter, we will try of doing the configuration from xilinx in the moment,
and we hope to have your help if we have problems. Thank you for the
information and we will contact you

El mar., 24 de jul. de 2018 a la(s) 16:31, Peter C. Wallace (p...@mesanet.com)
escribió:

> On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:
>
> > Date: Tue, 24 Jul 2018 16:18:25 -0500
> > From: yomin estiven jaramillo munera 
> > Reply-To: "Enhanced Machine Controller (EMC)"
> > 
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] parallel ports configuration
> >
> > the daughter board is made by us, this is not of the firmware recommended
> by mesa
>
> OK so you could give me the pinout, and I can make a compatible bitfile or
> you
> could download the Xilinx tools and the HostMot2 source and compile one
> yourself (you need to make a pinout file that matches your hardware)
>
>
> El mar., 24 de jul. de 2018 a la(s) 16:09, Peter C. Wallace (
> p...@mesanet.com)
> escribiяя:
>
> > On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:
> >
> > > Date: Tue, 24 Jul 2018 16:02:05 -0500
> > > From: yomin estiven jaramillo munera 
> > > Reply-To: "Enhanced Machine Controller (EMC)"
> > > 
> > > To: emc-users@lists.sourceforge.net
> > > Subject: Re: [Emc-users] parallel ports configuration
> > >
> > > Hi, we have observed that we must configurate de firmware from xilinx
> is
> > this correct?, is there way of doing the configuration of the firmware of
> > another way?, is possible do it from pncconf?
> >
> >
> > Firmware is loaded with the utility "mesaflash" that loads bitfiles into
> > the
> > 5I25s memory
> >
> >
> > The breakout board/daughterboard pinout is needed to determine the proper
> > firmware to load. This is why I asked about the breakout board you are
> > using.
> >
> >
> > El mar., 24 de jul. de 2018 a la(s) 15:37, yomin estiven jaramillo
> munera (
> > yejm...@gmail.com) escribi:
> >
> > > Debug file information:
> > > ./prueba.hal:51: parameter or pin 'hm2_5i25.0.stepgen.00.dirsetup' not
> > > found
> > > 6464
> > >   PID TTY  STAT   TIME COMMAND
> > > Stopping realtime threads
> > > Unloading hal components
> > >
> > > El mar., 24 de jul. de 2018 a la(s) 15:10, Peter C. Wallace (
> > > p...@mesanet.com) escribi:
> > >
> > >> On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:
> > >>
> > >> > Date: Tue, 24 Jul 2018 15:02:31 -0500
> > >> > From: yomin estiven jaramillo munera 
> > >> > Reply-To: "Enhanced Machine Controller (EMC)"
> > >> > 
> > >> > To: emc-users@lists.sourceforge.net
> > >> > Subject: Re: [Emc-users] parallel ports configuration
> > >> >
> > >> > Hi, i have problems for the pc recognize the card 5i25, i am trying
> to
> > >> >start from pncconf but when i execute linuxcnc, this sends me a error
> > >> which
> > >> >It seems to be card recognition, I am installing the card and
> > immediately
> > >> >making the configuration with pncconf, what am i not doing?
> > >>
> > >>
> > >> Can you copy the error message into a email?
> > >>
> > >>
> > >>
> > >> Peter Wallace
> > >> Mesa Electronics
> > >>
> > >>
> > >>
> > >>
> > >>
> >
> --
> > >> Check out the vibrant tech community on one of the world's most
> > >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > >> ___
> > >> Emc-users mailing list
> > >> Emc-users@lists.sourceforge.net
> > >> https://lists.sourceforge.net/lists/listinfo/emc-users
> > >>
> > >
> >
> >
> --
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > Peter Wallace
> > Mesa Electronics
> >
> > (\__/)
> > (='.'=) This is Bunny. Copy and paste bunny into your
> > (")_(") signature to help him gain world domination.
> >
> >
> --
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> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > ___
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> > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
>
> --
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> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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>
> Peter Wallace
> Mesa Electronics
>
> (\__/)
> (='.'=) This is Bunny. Copy and paste

Re: [Emc-users] CAD for LinuxCNC

[John Dammeyer]

Thanks.  I've heard good things about RhinoCAM too.  They also integrate
with MecSoft VisualCAM.
> >
> On The only Windows machine I ever will have.
>

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Re: [Emc-users] parallel ports configuration

[Peter C. Wallace]

On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:


Date: Tue, 24 Jul 2018 16:18:25 -0500
From: yomin estiven jaramillo munera 
Reply-To: "Enhanced Machine Controller (EMC)"

To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] parallel ports configuration

the daughter board is made by us, this is not of the firmware recommended

by mesa

OK so you could give me the pinout, and I can make a compatible bitfile or you 
could download the Xilinx tools and the HostMot2 source and compile one 
yourself (you need to make a pinout file that matches your hardware)



El mar., 24 de jul. de 2018 a la(s) 16:09, Peter C. Wallace (p...@mesanet.com)
escribi??:


On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:

> Date: Tue, 24 Jul 2018 16:02:05 -0500
> From: yomin estiven jaramillo munera 
> Reply-To: "Enhanced Machine Controller (EMC)"
> 
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] parallel ports configuration
>
> Hi, we have observed that we must configurate de firmware from xilinx is
this correct?, is there way of doing the configuration of the firmware of
another way?, is possible do it from pncconf?


Firmware is loaded with the utility "mesaflash" that loads bitfiles into
the
5I25s memory


The breakout board/daughterboard pinout is needed to determine the proper
firmware to load. This is why I asked about the breakout board you are
using.


El mar., 24 de jul. de 2018 a la(s) 15:37, yomin estiven jaramillo munera (
yejm...@gmail.com) escribi:

> Debug file information:
> ./prueba.hal:51: parameter or pin 'hm2_5i25.0.stepgen.00.dirsetup' not
> found
> 6464
>   PID TTY  STAT   TIME COMMAND
> Stopping realtime threads
> Unloading hal components
>
> El mar., 24 de jul. de 2018 a la(s) 15:10, Peter C. Wallace (
> p...@mesanet.com) escribi:
>
>> On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:
>>
>> > Date: Tue, 24 Jul 2018 15:02:31 -0500
>> > From: yomin estiven jaramillo munera 
>> > Reply-To: "Enhanced Machine Controller (EMC)"
>> > 
>> > To: emc-users@lists.sourceforge.net
>> > Subject: Re: [Emc-users] parallel ports configuration
>> >
>> > Hi, i have problems for the pc recognize the card 5i25, i am trying to
>> >start from pncconf but when i execute linuxcnc, this sends me a error
>> which
>> >It seems to be card recognition, I am installing the card and
immediately
>> >making the configuration with pncconf, what am i not doing?
>>
>>
>> Can you copy the error message into a email?
>>
>>
>>
>> Peter Wallace
>> Mesa Electronics
>>
>>
>>
>>
>>
--
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> ___
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>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>

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Re: [Emc-users] CAD for LinuxCNC

[Marcus Bowman]

On 24 Jul 2018, at 21:02, Sebastian Kuzminsky wrote:

> I think "rest machining" refers to doing initial machining passes with
> a large-diameter cutter, having the CAM keep track of the remaining
> material that needs to be removed, and then doing finishing passes
> with a smaller-diameter cutter to remove that remaining material. For
> example, think of a large pocket with sharp corners, roughed out with
> a large endmill and then finished with a small endmill.
> 
This sounds like  what VCarve Pro does. It asks if you want to rough out using 
a larger diameter cutter, then generates two programs via the post-processor: 
one for the roughing operation (using the large tool), and the other for the 
finishing (with a smaller tool for the fine detail). The user chooses and 
specifies both tools before the software calculaltes the paths.
It generally works ok, although I have run the odd job where there are 
artefacts left by the roughing cut which are not fully removed using the 
smaller cutter.

Marcus



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Re: [Emc-users] parallel ports configuration

[yomin estiven jaramillo munera]

the daughter board is made by us, this is not of the firmware recommended
by mesa

El mar., 24 de jul. de 2018 a la(s) 16:09, Peter C. Wallace (p...@mesanet.com)
escribió:

> On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:
>
> > Date: Tue, 24 Jul 2018 16:02:05 -0500
> > From: yomin estiven jaramillo munera 
> > Reply-To: "Enhanced Machine Controller (EMC)"
> > 
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] parallel ports configuration
> >
> > Hi, we have observed that we must configurate de firmware from xilinx is
> this correct?, is there way of doing the configuration of the firmware of
> another way?, is possible do it from pncconf?
>
>
> Firmware is loaded with the utility "mesaflash" that loads bitfiles into
> the
> 5I25s memory
>
>
> The breakout board/daughterboard pinout is needed to determine the proper
> firmware to load. This is why I asked about the breakout board you are
> using.
>
>
> El mar., 24 de jul. de 2018 a la(s) 15:37, yomin estiven jaramillo munera (
> yejm...@gmail.com) escribiяя:
>
> > Debug file information:
> > ./prueba.hal:51: parameter or pin 'hm2_5i25.0.stepgen.00.dirsetup' not
> > found
> > 6464
> >   PID TTY  STAT   TIME COMMAND
> > Stopping realtime threads
> > Unloading hal components
> >
> > El mar., 24 de jul. de 2018 a la(s) 15:10, Peter C. Wallace (
> > p...@mesanet.com) escribiяя:
> >
> >> On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:
> >>
> >> > Date: Tue, 24 Jul 2018 15:02:31 -0500
> >> > From: yomin estiven jaramillo munera 
> >> > Reply-To: "Enhanced Machine Controller (EMC)"
> >> > 
> >> > To: emc-users@lists.sourceforge.net
> >> > Subject: Re: [Emc-users] parallel ports configuration
> >> >
> >> > Hi, i have problems for the pc recognize the card 5i25, i am trying to
> >> >start from pncconf but when i execute linuxcnc, this sends me a error
> >> which
> >> >It seems to be card recognition, I am installing the card and
> immediately
> >> >making the configuration with pncconf, what am i not doing?
> >>
> >>
> >> Can you copy the error message into a email?
> >>
> >>
> >>
> >> Peter Wallace
> >> Mesa Electronics
> >>
> >>
> >>
> >>
> >>
> --
> >> Check out the vibrant tech community on one of the world's most
> >> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> >> ___
> >> Emc-users mailing list
> >> Emc-users@lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/emc-users
> >>
> >
>
> --
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> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
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> https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Peter Wallace
> Mesa Electronics
>
> (\__/)
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> (")_(") signature to help him gain world domination.
>
> --
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Re: [Emc-users] parallel ports configuration

[Peter C. Wallace]

On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:


Date: Tue, 24 Jul 2018 16:02:05 -0500
From: yomin estiven jaramillo munera 
Reply-To: "Enhanced Machine Controller (EMC)"

To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] parallel ports configuration

Hi, we have observed that we must configurate de firmware from xilinx is

this correct?, is there way of doing the configuration of the firmware of
another way?, is possible do it from pncconf?


Firmware is loaded with the utility "mesaflash" that loads bitfiles into the 
5I25s memory



The breakout board/daughterboard pinout is needed to determine the proper 
firmware to load. This is why I asked about the breakout board you are using.



El mar., 24 de jul. de 2018 a la(s) 15:37, yomin estiven jaramillo munera (
yejm...@gmail.com) escribi??:


Debug file information:
./prueba.hal:51: parameter or pin 'hm2_5i25.0.stepgen.00.dirsetup' not
found
6464
  PID TTY  STAT   TIME COMMAND
Stopping realtime threads
Unloading hal components

El mar., 24 de jul. de 2018 a la(s) 15:10, Peter C. Wallace (
p...@mesanet.com) escribi??:


On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:

> Date: Tue, 24 Jul 2018 15:02:31 -0500
> From: yomin estiven jaramillo munera 
> Reply-To: "Enhanced Machine Controller (EMC)"
> 
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] parallel ports configuration
>
> Hi, i have problems for the pc recognize the card 5i25, i am trying to
>start from pncconf but when i execute linuxcnc, this sends me a error
which
>It seems to be card recognition, I am installing the card and immediately
>making the configuration with pncconf, what am i not doing?


Can you copy the error message into a email?



Peter Wallace
Mesa Electronics




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Re: [Emc-users] parallel ports configuration

[yomin estiven jaramillo munera]

Hi, we have observed that we must configurate de firmware from xilinx is
this correct?, is there way of doing the configuration of the firmware of
another way?, is possible do it from pncconf?

El mar., 24 de jul. de 2018 a la(s) 15:37, yomin estiven jaramillo munera (
yejm...@gmail.com) escribió:

> Debug file information:
> ./prueba.hal:51: parameter or pin 'hm2_5i25.0.stepgen.00.dirsetup' not
> found
> 6464
>   PID TTY  STAT   TIME COMMAND
> Stopping realtime threads
> Unloading hal components
>
> El mar., 24 de jul. de 2018 a la(s) 15:10, Peter C. Wallace (
> p...@mesanet.com) escribió:
>
>> On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:
>>
>> > Date: Tue, 24 Jul 2018 15:02:31 -0500
>> > From: yomin estiven jaramillo munera 
>> > Reply-To: "Enhanced Machine Controller (EMC)"
>> > 
>> > To: emc-users@lists.sourceforge.net
>> > Subject: Re: [Emc-users] parallel ports configuration
>> >
>> > Hi, i have problems for the pc recognize the card 5i25, i am trying to
>> >start from pncconf but when i execute linuxcnc, this sends me a error
>> which
>> >It seems to be card recognition, I am installing the card and immediately
>> >making the configuration with pncconf, what am i not doing?
>>
>>
>> Can you copy the error message into a email?
>>
>>
>>
>> Peter Wallace
>> Mesa Electronics
>>
>>
>>
>>
>> --
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>
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Re: [Emc-users] parallel ports configuration

[Peter C. Wallace]

On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:


Date: Tue, 24 Jul 2018 15:37:03 -0500
From: yomin estiven jaramillo munera 
Reply-To: "Enhanced Machine Controller (EMC)"

To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] parallel ports configuration

Debug file information:

./prueba.hal:51: parameter or pin 'hm2_5i25.0.stepgen.00.dirsetup' not found
6464
  PID TTY  STAT   TIME COMMAND
Stopping realtime threads
Unloading hal components


OK that means the card was found but the card firmware has no stepgens
What breakout board do you have?



El mar., 24 de jul. de 2018 a la(s) 15:10, Peter C. Wallace (p...@mesanet.com)
escribi??:


On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:

> Date: Tue, 24 Jul 2018 15:02:31 -0500
> From: yomin estiven jaramillo munera 
> Reply-To: "Enhanced Machine Controller (EMC)"
> 
> To: emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] parallel ports configuration
>
> Hi, i have problems for the pc recognize the card 5i25, i am trying to
>start from pncconf but when i execute linuxcnc, this sends me a error
which
>It seems to be card recognition, I am installing the card and immediately
>making the configuration with pncconf, what am i not doing?


Can you copy the error message into a email?



Peter Wallace
Mesa Electronics




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Re: [Emc-users] CAD for LinuxCNC

[Sven Wesley]

On Tue, Jul 24, 2018 at 10:26 PM John Dammeyer 
wrote:

> And are you running on Windows, MAC or Linux for Rhino?
>
> > Glad to hear it is stable nowadays.  Gotta test it.
> > For all my work I only work in Rhino 3D  and
> all
> > CAM is made inside Rhino with the MadCam 
> > extension.
> > Been using that combo the last 6-8 years or something like that.
> > It is not for free, but the time I save with an efficient workflow is
> worth
> > every penny. And the price is still a fraction of my former SolidEdge
> > license...
> > Post to LinuxCNC exist, of course.
>
>
On The only Windows machine I ever will have.
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Re: [Emc-users] parallel ports configuration

[yomin estiven jaramillo munera]

 Debug file information:
./prueba.hal:51: parameter or pin 'hm2_5i25.0.stepgen.00.dirsetup' not found
6464
  PID TTY  STAT   TIME COMMAND
Stopping realtime threads
Unloading hal components

El mar., 24 de jul. de 2018 a la(s) 15:10, Peter C. Wallace (p...@mesanet.com)
escribió:

> On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:
>
> > Date: Tue, 24 Jul 2018 15:02:31 -0500
> > From: yomin estiven jaramillo munera 
> > Reply-To: "Enhanced Machine Controller (EMC)"
> > 
> > To: emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] parallel ports configuration
> >
> > Hi, i have problems for the pc recognize the card 5i25, i am trying to
> >start from pncconf but when i execute linuxcnc, this sends me a error
> which
> >It seems to be card recognition, I am installing the card and immediately
> >making the configuration with pncconf, what am i not doing?
>
>
> Can you copy the error message into a email?
>
>
>
> Peter Wallace
> Mesa Electronics
>
>
>
>
> --
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> ___
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> https://lists.sourceforge.net/lists/listinfo/emc-users
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Re: [Emc-users] CAD for LinuxCNC

[Martin Dobbins]

This is kind of OT the subject matter, but this person has an interesting setup 
(lathe only).   Briefly, a Mac mini running the design software (self written) 
which is networked to a headless cnc computer running on (I think) an atom, and 
it's all controlled from a home built pendant running on a micro controller


http://cornlathe.billooms.com/index.html


Martin




From: John Dammeyer 
Sent: Tuesday, July 24, 2018 2:45 PM
To: 'Enhanced Machine Controller (EMC)'
Subject: Re: [Emc-users] CAD for LinuxCNC

> I've been using Fusion 360 for a few years now. The license is
> $300/year. They have a post processor for linuxcnc so the CAM directly
> generates g-code that I can take out to the machine. As an example, I
> had to cut a couple of these from 303:
> 
Hi Dan,
Sweet.  Are you running a MAC or PC with windows for Fusion?
John



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[Emc-users] CAD for LinuxCNC

[Roland Jollivet]

On 24 July 2018 at 22:02, Sebastian Kuzminsky 
wrote:

> On Tue, Jul 24, 2018 at 1:45 PM Valerio Bellizzomi 
> wrote:
> > On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> > > I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> > >
> > > >From what I see, neither seem to do rest milling (rest machining),
> which is
> > > a limitation of most of the free packages and makes it pretty useless
> for
> > > multiple cutters unless you are extremely vigilant on what was not cut.
> > >
> > > Or do they do rest milling?
> >
> > I have no idea of what it is, but there is a feature request:
> >
> > https://github.com/SebKuzminsky/pycam/issues/120
>
> I think "rest machining" refers to doing initial machining passes with
> a large-diameter cutter, having the CAM keep track of the remaining
> material that needs to be removed, and then doing finishing passes
> with a smaller-diameter cutter to remove that remaining material. For
> example, think of a large pocket with sharp corners, roughed out with
> a large endmill and then finished with a small endmill.
>
> The feature request you linked above is different (and simpler): it's
> just to do "normal" machining operations on *select* features in the
> model, instead of applying the operations to *all* features of the
> model.
>

Yes. When milling steel it's very easy to snap a 3mm cutter because the
previous 6mm cutter couldn't go into a dip, and the path is using the final
geometry as the reference model for the 3mm cutter.

I've often wondered how hard it would be to program 'rest machining'
I think stl format is fine for most hobbyists, and offers a simpler way of
keeping track of a solid in software.

A method I envisage is as follows;
Say operations are chosen as follows;
- first a 10mm roughing, then
- 3mm finishing with 0.2mm remaining, then
- 1mm final pass, 0mm remaining

Once all the parameters are selected, the software creates a machining
model in Reverse...
First it takes the final .stl and adds on a 0.2mm layer, by computing
triangles according to the path of the 1mm cutter parameters, then
adds the 3mm passes, and so on until the full stock has been generated.
Obviously now these operations are run in reverse again to create a forward
Gcode file.

Possible?
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Re: [Emc-users] CAD for LinuxCNC

[John Dammeyer]

And are you running on Windows, MAC or Linux for Rhino?

> Glad to hear it is stable nowadays.  Gotta test it.
> For all my work I only work in Rhino 3D  and all
> CAM is made inside Rhino with the MadCam 
> extension.
> Been using that combo the last 6-8 years or something like that.
> It is not for free, but the time I save with an efficient workflow is
worth
> every penny. And the price is still a fraction of my former SolidEdge
> license...
> Post to LinuxCNC exist, of course.


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Re: [Emc-users] parallel ports configuration

[Peter C. Wallace]

On Tue, 24 Jul 2018, yomin estiven jaramillo munera wrote:


Date: Tue, 24 Jul 2018 15:02:31 -0500
From: yomin estiven jaramillo munera 
Reply-To: "Enhanced Machine Controller (EMC)"

To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] parallel ports configuration

Hi, i have problems for the pc recognize the card 5i25, i am trying to
start from pncconf but when i execute linuxcnc, this sends me a error which
It seems to be card recognition, I am installing the card and immediately
making the configuration with pncconf, what am i not doing?



Can you copy the error message into a email?



Peter Wallace
Mesa Electronics



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Re: [Emc-users] CAD for LinuxCNC

[Sven Wesley]

On Tue, Jul 24, 2018 at 9:07 PM Valerio Bellizzomi 
wrote:

> The version 0.16 is good, I did not find errors on debian again
> drawings can be exported to STL and given in input to PyCAM
>

Glad to hear it is stable nowadays.  Gotta test it.
For all my work I only work in Rhino 3D  and all
CAM is made inside Rhino with the MadCam  extension.
Been using that combo the last 6-8 years or something like that.
It is not for free, but the time I save with an efficient workflow is worth
every penny. And the price is still a fraction of my former SolidEdge
license...
Post to LinuxCNC exist, of course.
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Re: [Emc-users] CAD for LinuxCNC

[Sebastian Kuzminsky]

On Tue, Jul 24, 2018 at 1:45 PM Valerio Bellizzomi  wrote:
> On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> > I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> >
> > >From what I see, neither seem to do rest milling (rest machining), which is
> > a limitation of most of the free packages and makes it pretty useless for
> > multiple cutters unless you are extremely vigilant on what was not cut.
> >
> > Or do they do rest milling?
>
> I have no idea of what it is, but there is a feature request:
>
> https://github.com/SebKuzminsky/pycam/issues/120

I think "rest machining" refers to doing initial machining passes with
a large-diameter cutter, having the CAM keep track of the remaining
material that needs to be removed, and then doing finishing passes
with a smaller-diameter cutter to remove that remaining material. For
example, think of a large pocket with sharp corners, roughed out with
a large endmill and then finished with a small endmill.

The feature request you linked above is different (and simpler): it's
just to do "normal" machining operations on *select* features in the
model, instead of applying the operations to *all* features of the
model.

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Re: [Emc-users] parallel ports configuration

[yomin estiven jaramillo munera]

Hi, i have problems for the pc recognize the card 5i25, i am trying to
start from pncconf but when i execute linuxcnc, this sends me a error which
It seems to be card recognition, I am installing the card and immediately
making the configuration with pncconf, what am i not doing?

El mié., 11 de jul. de 2018 a la(s) 17:03, andy pugh (bodge...@gmail.com)
escribió:

> On 11 July 2018 at 19:13, yomin estiven jaramillo munera
>  wrote:
>
> > so i would like to known, how is the installation process of this
> > card in the machine? thanks you.
>
> If you are using LinuxCNC then just plug it in and configure with PnCConf.
>
> You do not need to install any drivers other than the ones included
> with LinuxCNC.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1916
>
>
> --
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Re: [Emc-users] CAD for LinuxCNC

[Valerio Bellizzomi]

On Tue, 2018-07-24 at 21:27 +0200, Roland Jollivet wrote:
> On 24 July 2018 at 21:04, Valerio Bellizzomi  wrote:
> 
> > On Tue, 2018-07-24 at 19:47 +0100, andy pugh wrote:
> > > On 24 July 2018 at 19:19, Gene Heskett  wrote:
> > >
> > > > What version is it up to now? Ack the git pages it still at 0.17, and
> > > > thats much of a decade old.
> > >
> > > https://www.freecadweb.org/wiki/Download
> > >
> > > "The first 0.17 release of FreeCAD (0.17.13509) was published 2018-04-06"
> > >
> > > Which seems unlikely to be true :-)
> > >
> > >
> >
> >
> > The version 0.16 is good, I did not find errors on debian again
> >
> > drawings can be exported to STL and given in input to PyCAM
> >
> >
> I had a quick look at PyCAM, and FreeCAD's Path Workbench.
> 
> >From what I see, neither seem to do rest milling (rest machining), which is
> a limitation of most of the free packages and makes it pretty useless for
> multiple cutters unless you are extremely vigilant on what was not cut.
> 
> Or do they do rest milling?


I have no idea of what it is, but there is a feature request:

https://github.com/SebKuzminsky/pycam/issues/120




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Re: [Emc-users] CAD for LinuxCNC

[John Dammeyer]

> I've been using Fusion 360 for a few years now. The license is
> $300/year. They have a post processor for linuxcnc so the CAM directly
> generates g-code that I can take out to the machine. As an example, I
> had to cut a couple of these from 303:
> 
Hi Dan,
Sweet.  Are you running a MAC or PC with windows for Fusion?
John



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[Emc-users] CAD for LinuxCNC

[Roland Jollivet]

On 24 July 2018 at 21:04, Valerio Bellizzomi  wrote:

> On Tue, 2018-07-24 at 19:47 +0100, andy pugh wrote:
> > On 24 July 2018 at 19:19, Gene Heskett  wrote:
> >
> > > What version is it up to now? Ack the git pages it still at 0.17, and
> > > thats much of a decade old.
> >
> > https://www.freecadweb.org/wiki/Download
> >
> > "The first 0.17 release of FreeCAD (0.17.13509) was published 2018-04-06"
> >
> > Which seems unlikely to be true :-)
> >
> >
>
>
> The version 0.16 is good, I did not find errors on debian again
>
> drawings can be exported to STL and given in input to PyCAM
>
>
I had a quick look at PyCAM, and FreeCAD's Path Workbench.

>From what I see, neither seem to do rest milling (rest machining), which is
a limitation of most of the free packages and makes it pretty useless for
multiple cutters unless you are extremely vigilant on what was not cut.

Or do they do rest milling?
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Re: [Emc-users] THANK YOU German Meetup 2018!

[Rene Hopf via Emc-users]

some more pictures:
https://www.flickr.com/photos/vukawena/sets/7215769897294

> On 23. Jul 2018, at 11:18, Sven Wesley  wrote:
> 
> To all who helped me get the servo running with this hybrid setup of Mesa
> and Benezan hardware, I bow deep and move slowly backwards. You are wizards
> without a beard (except for Andy though, but it is too short).
> A special thank you to Marius, Rene, Andy and Andy, Bene himself and of
> course Peter Wallace who made a custom bit file for me!
> 
> Of course, an extra big thank you to Andreas Andy Ruff for hosting this
> event with such great hospitality!
> 
> https://www.instagram.com/p/Blh8T_BlVQX/
> https://www.instagram.com/p/BligWNRA0ec/
> https://www.instagram.com/p/BlkZo2WjjPt/
> 
> 
> /Sven
> --
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Re: [Emc-users] CAD for LinuxCNC

[Valerio Bellizzomi]

On Tue, 2018-07-24 at 19:47 +0100, andy pugh wrote:
> On 24 July 2018 at 19:19, Gene Heskett  wrote:
> 
> > What version is it up to now? Ack the git pages it still at 0.17, and
> > thats much of a decade old.
> 
> https://www.freecadweb.org/wiki/Download
> 
> "The first 0.17 release of FreeCAD (0.17.13509) was published 2018-04-06"
> 
> Which seems unlikely to be true :-)
> 
> 


The version 0.16 is good, I did not find errors on debian again

drawings can be exported to STL and given in input to PyCAM



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Re: [Emc-users] CAD for LinuxCNC

[Nicklas Karlsson]

> On 24 July 2018 at 19:19, Gene Heskett  wrote:
> 
> > What version is it up to now? Ack the git pages it still at 0.17, and
> > thats much of a decade old.
> 
> https://www.freecadweb.org/wiki/Download
> 
> "The first 0.17 release of FreeCAD (0.17.13509) was published 2018-04-06"
> 
> Which seems unlikely to be true :-)

Why?

I have 0.16

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Re: [Emc-users] CAD for LinuxCNC

[Nicklas Karlsson]

> > > I think its abandonware Jon, the latest version hasn't moved in
> > > about 5 years.
> >
> > Last commit 3 hours ago.
> >
> > https://github.com/FreeCAD/FreeCAD
> 
> Humm, His old site doesn't note its been moved to github.
> 
> What version is it up to now? Ack the git pages it still at 0.17, and 
> thats much of a decade old. 7 years ago it was moved I'd guess and it 
> was carrying the 0.17 version before then. I dunno.

I guess bougth software is a lot better and features expected is missing but 
then it come to 3D CAD price migth be an issue and the most important is there.

I get the feeling improvements have slowed down and basic ideas have stayed the 
same for many years. The computers I have today I had for quite many years and 
this did not happen then I was younger. Do you think there are a lot of 
development for cars? Four wheels, steering wheel, steering wheel in the front, 
average fuel consumption have increased, after the second world war Germany 
built small cars while USA built large cars but they have converged to some 
degree. There some "useful" development left for self driving cars, then they 
become good enough it's possible to get drunk and use car to get home without 
getting cought by police. 3D printer might be another case.


Nicklas Karlsson

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Re: [Emc-users] CAD for LinuxCNC

[andy pugh]

On 24 July 2018 at 19:19, Gene Heskett  wrote:

> What version is it up to now? Ack the git pages it still at 0.17, and
> thats much of a decade old.

https://www.freecadweb.org/wiki/Download

"The first 0.17 release of FreeCAD (0.17.13509) was published 2018-04-06"

Which seems unlikely to be true :-)


-- 
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, 1916

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Re: [Emc-users] CAD for LinuxCNC

[Gene Heskett]

On Tuesday 24 July 2018 14:06:46 andy pugh wrote:

> On 24 July 2018 at 18:39, Gene Heskett  wrote:
>
> (FreeCAD)
>
> > I think its abandonware Jon, the latest version hasn't moved in
> > about 5 years.
>
> Last commit 3 hours ago.
>
> https://github.com/FreeCAD/FreeCAD

Humm, His old site doesn't note its been moved to github.

What version is it up to now? Ack the git pages it still at 0.17, and 
thats much of a decade old. 7 years ago it was moved I'd guess and it 
was carrying the 0.17 version before then. I dunno.

-- 
Cheers, Gene Heskett
--
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] CAD for LinuxCNC

[Valerio Bellizzomi]

On Tue, 2018-07-24 at 11:14 -0500, Jon Elson wrote:
> On 07/24/2018 07:37 AM, Valerio Bellizzomi wrote:
> > I use FreeCAD and Blender for the modeling and PyCAM to 
> > convert to gcode all on Debian
> I'd like to hear more about this.  I tried the VERY latest 
> FreeCAD a couple months ago and it seemed to have some 
> problems.  So, we then went with Inventor (Autodesk).  That 
> works pretty well, but can be very complicated for an 
> occasional user.
> 
> I'm thinking maybe that I should not have tried the very 
> latest release of FreeCAD, and maybe let the new bugs get 
> fixed first.  So, what version are you using?  What source 
> of info did you find to learn to use it?
> 
> Thanks,
> 
> Jon

On which system are you having trouble?

I use Freecad version 16 on debian, I have designed a cnc machine with
it, but I do not use the included cam module which is at first stage I
think

PyCAM on debian can do everything at transforming models into gcode for
3 axis machining




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Re: [Emc-users] CAD for LinuxCNC

[andy pugh]

On 24 July 2018 at 18:39, Gene Heskett  wrote:

(FreeCAD)

> I think its abandonware Jon, the latest version hasn't moved in about 5
> years.

Last commit 3 hours ago.

https://github.com/FreeCAD/FreeCAD


-- 
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, 1916

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Re: [Emc-users] CAD for LinuxCNC

[Gene Heskett]

On Tuesday 24 July 2018 12:14:50 Jon Elson wrote:

> On 07/24/2018 07:37 AM, Valerio Bellizzomi wrote:
> > I use FreeCAD and Blender for the modeling and PyCAM to
> > convert to gcode all on Debian
>
> I'd like to hear more about this.  I tried the VERY latest
> FreeCAD a couple months ago and it seemed to have some
> problems.  So, we then went with Inventor (Autodesk).  That
> works pretty well, but can be very complicated for an
> occasional user.
>
> I'm thinking maybe that I should not have tried the very
> latest release of FreeCAD, and maybe let the new bugs get
> fixed first.  So, what version are you using?  What source
> of info did you find to learn to use it?
>
> Thanks,
>
> Jon
>
I think its abandonware Jon, the latest version hasn't moved in about 5 
years. He (Dan Heeks) had an earlier project (Heekscad) that could 
export gcode, but that code never got pulled into freecad. Dan Heeks I 
expect had to go do something that bought groceries. And neither of 
those projects ever made him any money. TANSTAAFL applies always.

-- 
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--
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] buildbot web page

[Gene Heskett]

On Tuesday 24 July 2018 12:09:48 TJoseph Powderly wrote:

> Well the first attempts to use had lots of hangs,
> so i put the rpi in the 'ton yen' ( ice box)
> to see if it would run longer than 10 minutes.
>
> But,when I brought it out,
> it beaded up with so much,
> that I didnt try using it untill it was really dry again.
If the pi is clean, that condensation might as well be distilled, won't 
bother it a bit. The key is what we used to call lox clean though.

> I found a big floor fan works well.
> The unit has 3 heat sinks already.
>
> Humidity here is 3x a day showers
> and 3x a day changes of clothes
> ( peeling off t-shirts is a real exercise )
>
As I found last evening, having taken the rider and a 2 wheeled trailer 
over to the entry of this almost cul-de-sac and picked up about 4 cubic 
feet of dirt from a hillside slip trying to block the road and brought 
it back to try and fill some low spots in the back yard. I chopped up 
and installed half of it, then drilled about 25 holes in a tree stump 
that needs to go, and gave them a filling squirt of stump rotter powder, 
activated with the next rain in todays forecast. By then a PETA T-shirt 
was welded to my back. PETA around here stands for People Eating Tasty 
Animals. :)

Theres at least another "yard" of what passes for dirt there, so I can, 
if I last long enough running a mexican backhoe, level quite a  bit of 
my yards "potholes". The key is me and my years.

> The humidity may help
> but I'll keep the air circulating a lot.
>
> tomp
>
> On Tue, Jul 24, 2018 at 7:51 PM, andy pugh  wrote:
> > On 24 July 2018 at 09:30, Gene Heskett  wrote:
> > >> they really need the cooling, its hot and humid here, rainy
> > >> season , near 38C daily
> > >
> > > Ahh, then yes, lots of cooling.
> >
> > Unless the heat-sink relies on sweating to work I very much doubt
> > that the humidity matters to the Pi.
> > In fact it probably helps: https://bit.ly/2LEMh1H
> >
> >
> > --
> > 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, 1916
> >
> > 
> > --
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--
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] CAD for LinuxCNC

[Chris Albertson]

On Tue, Jul 24, 2018 at 9:12 AM Gene Heskett  wrote:

> On Tuesday 24 July 2018 08:21:18 andy pugh wrote:
>
> > On 24 July 2018 at 07:53, Marcus Bowman
> >
> >  wrote:
> > > I used to think I would need manual knobs as well as the computer
> > > control of the machine, but in 15 years or so, I have never had the
> > > need.
> >
> > Me too. I kept the manual knobs on my first conversion, and never used
> > them. Then I retained the option on the current mill, and have never
> > used them, and then I learned my lesson and didn't bother on the lathe
> > conversion. But the lathe does have two MPGs on the saddle for those
> > super-simple "Just need a groove turned" jobs.
>
> Chuckle, and precisely why theres a couple dial encoders on the new apron
> of the sheldon. I'd put some on The Little Monster too but where? No
> room on that teeny apron, and I'm out of i/o until I fit another box and
> breakout board anyway.


Where?  On a hand held device, best if it can be wireless.An $80
Android tablet could work and you would not have to build any hardware but
you might prefer physical controls and buttons in that case then, a small
box but in any case put the controls some place other then on the machine.
-- 

Chris Albertson
Redondo Beach, California
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Re: [Emc-users] frank hermann xatc extremely simple automatic tool changer

[Gene Heskett]

On Tuesday 24 July 2018 09:38:14 Sven Wesley wrote:

> Den tis 17 juli 2018 16:00Gene Heskett 
>
> > 
> >
> > This link from one of the comments shows a considerably better idea,
> > but their demo video is obviously being done by hand as all the
> > intermittent motion could well be converted to gcode and done in 2%
> > of the time. Another item would be to reverse the motor depending on
> > the pocket being addressed as that would allow bigger gears at the
> > expense of needing to invert the motor drive, needed for adequate
> > tightening of the collets. Proof of concept, but needs more
> > development.  And again, skips the drawbar problem.
> >
> > --
> > Cheers, Gene Heskett
> > --
>
> Oh, that was a neat solution!
> I was thinking of a modified version of the xatc but with the
> "ratchet" as a separate tool. But this one I will steal some ideas
> from for sure. I think I use the same concept but the wrench will sit
> on the ATC, not on the spindle.
>
> Good find Gene!
>
> /Sven
>
Glad I could help.

I've given some thought to a 6 tool carousel hanging on the post, with a 
double ended transfer carrier, but clearances are a major problem for 
the transfer carrier, and making it even more complex to control if 
single ended. And that involves controlling a racheting drill driver to 
run the drawbolt in 3 modes, one to tighten, and just loosen and one to 
fully drop the r8, and that expands to 2 carousels to control or a much 
bigger carousel, one on each side of the post if 2. Writing sw for that 
will be painfull, for me at least, and would make me convert from a 5i25 
with its 34 pins of limited direction I/O, to a 7i90 and 3 7i42TA's to 
get enough I/O (72 gpio's not subtracting whats used for 7 canned 
functions to do it.  Sigh. Not to mention the current tool.tbl format 
has no place for such changer data tomfoolery.  The end result is that 
it very likely will never happen. LCNC maybe needs to grow a 
changer.tbl?

I have other stuff that needs doing before I get back to the changer. :(

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--
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 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] CAD for LinuxCNC

[Dan Bloomquist]

John Dammeyer wrote:

Hi Chris,
So to summarize your reply.
When you draw using a PC rather than the back of an envelope you use Windows
and Fusion360.
For CAM the Fusion360 generated STL files can be changed to G-Code by Cura
or Repetier for your 3D printer.
For CAM and LinuxCNC (I'm assuming since you are on this list you use
LinuxCNC) does Fusion360 generate the G-Code?  Or is there something else
inbetween.

Hi John,
My two cents.

I've been using Fusion 360 for a few years now. The license is 
$300/year. They have a post processor for linuxcnc so the CAM directly 
generates g-code that I can take out to the machine. As an example, I 
had to cut a couple of these from 303:



I don't have a lot of experience with other products, but I think the 
CAD is very powerful. Using constraints to place sketch objects make 
development go very fast. And, it works for articulated projects really 
well.



Anyway, I'm happy with it. I've fabbed dozens of things so far. A couple 
of times I've had to import solidworks CAD and CAM from there. So that 
works too. The only CAM I've yet to test is Mach3, my son has a plasma 
table running it. When we built the table I tried to talk him into 
linxucnc. Now that he sees how well my mill runs on linuxcnc, he is 
sold. But Fusion 360 will export 2Ds to dxf when I want to cut something 
on his table. The day will come when I'll test it from the sheet metal 
workspace of Fusion 360.


Best, Dan.


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Re: [Emc-users] CAD for LinuxCNC, Autodesk

[Chris Albertson]

On Tue, Jul 24, 2018 at 9:39 AM Nicklas Karlsson <
nicklas.karlsso...@gmail.com> wrote:

> On Tue, 24 Jul 2018 11:14:50 -0500
> Jon Elson  wrote:
>
> > On 07/24/2018 07:37 AM, Valerio Bellizzomi wrote:
> > > I use FreeCAD and Blender for the modeling and PyCAM to
> > > convert to gcode all on Debian
> > I'd like to hear more about this.  I tried the VERY latest
> > FreeCAD a couple months ago and it seemed to have some
> > problems.  So, we then went with Inventor (Autodesk).  That
> > works pretty well, ...
>
> And i also expect it's rather expensive, or?
>

Yes, Inventor is  little bit expensive but it all depends of is this is a
hobby of a business.   CNC Milling machines can be VERY expensive, so
expensive that the cost of software like Inventor in "in the noise".  You
don't need to be big shop before the cost of this software fall to under 1%
of your budget.  I looked up the cost of Inventor.  It is $2,000 per year.

For a low-end users, not making money or not making much money Fusion is
very much like Invetor and can be free

But I imagine there are many unlicensed Inventor users, using bootleg
copies.There was a time, years ago when Autodesk's "AutoCAD" was the
single most pirated software.   Autodesk got smart and realized that they
because a billion dollar international company not in spite of software
piracy but BECAUSE of it.   The availability of free AutoCAD cause AutoCAD
to become s kind of industry standard.



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Re: [Emc-users] CAD for LinuxCNC, Autodesk

[Nicklas Karlsson]

On Tue, 24 Jul 2018 11:14:50 -0500
Jon Elson  wrote:

> On 07/24/2018 07:37 AM, Valerio Bellizzomi wrote:
> > I use FreeCAD and Blender for the modeling and PyCAM to 
> > convert to gcode all on Debian
> I'd like to hear more about this.  I tried the VERY latest 
> FreeCAD a couple months ago and it seemed to have some 
> problems.  So, we then went with Inventor (Autodesk).  That 
> works pretty well, ...

And i also expect it's rather expensive, or?

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Re: [Emc-users] CAD for LinuxCNC

[John Dammeyer]

I detest using knobs or up/down buttons to enter numbers.  Tedious at best
which is why my ELS has a numeric keypad and an dual purpose encoder knob.
An it's not like numeric keypads aren't available inexpensively.

John


> -Original Message-
> From: Chris Albertson [mailto:albertson.ch...@gmail.com]
> Sent: July-24-18 8:56 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] CAD for LinuxCNC
> 
> On Mon, Jul 23, 2018 at 11:54 PM Marcus Bowman <
> marcus.bow...@visible.eclipse.co.uk> wrote:
> 
> >
> > On 24 Jul 2018, at 07:33, Chris Albertson wrote:
> >
> > >   What I want and am looking for is a kind of conversational system
> > > where I can walk up to the mill and use it for something simple with
no
> > > need for g-code.   I'm going back and forth on what would be best.
> > >
> >
> > I use a library of self-written general-purpose programs for the
everyday
> > common tasks. These have a parameter block at the start where I can
> quickly
> > modify sizes and speeds, so that the program can be modified in the
editor
> > for the task on the mill at the time.
> >
> 
> That seems like a good way to start.   I could then have a hand held
device
> that allows to enter the parameters.  Text enters means a trip through a
> computer.   But a hand wheel is actually not a bad way to enter numbers
> 
> 
> --
> 
> Chris Albertson
> Redondo Beach, California
>

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Re: [Emc-users] CAD for LinuxCNC, Freecad

[Valerio Bellizzomi]

On Tue, 2018-07-24 at 18:07 +0200, Nicklas Karlsson wrote:
> Did not follow and did not immidiately find anything about Freecad. I tried 
> for some simple things and to design parts seems to work rather well but 
> adding dimensions, drawing views, FEM and CAM is maybe not very good.


I use FreeCAD to design the parts and PyCAM to transform to gcode

http://pycam.sourceforge.net/





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Re: [Emc-users] CAD for LinuxCNC

[Jon Elson]

On 07/24/2018 07:37 AM, Valerio Bellizzomi wrote:
I use FreeCAD and Blender for the modeling and PyCAM to 
convert to gcode all on Debian
I'd like to hear more about this.  I tried the VERY latest 
FreeCAD a couple months ago and it seemed to have some 
problems.  So, we then went with Inventor (Autodesk).  That 
works pretty well, but can be very complicated for an 
occasional user.


I'm thinking maybe that I should not have tried the very 
latest release of FreeCAD, and maybe let the new bugs get 
fixed first.  So, what version are you using?  What source 
of info did you find to learn to use it?


Thanks,

Jon

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Re: [Emc-users] CAD for LinuxCNC

[Gene Heskett]

On Tuesday 24 July 2018 08:21:18 andy pugh wrote:

> On 24 July 2018 at 07:53, Marcus Bowman
>
>  wrote:
> > I used to think I would need manual knobs as well as the computer
> > control of the machine, but in 15 years or so, I have never had the
> > need.
>
> Me too. I kept the manual knobs on my first conversion, and never used
> them. Then I retained the option on the current mill, and have never
> used them, and then I learned my lesson and didn't bother on the lathe
> conversion. But the lathe does have two MPGs on the saddle for those
> super-simple "Just need a groove turned" jobs.

Chuckle, and precisely why theres a couple dial encoders on the new apron 
of the sheldon. I'd put some on The Little Monster too but where? No 
room on that teeny apron, and I'm out of i/o until I fit another box and 
breakout board anyway. Just one of several jobs I need to do in the shop 
building, first being to remove the remains of a burned up drive belt in 
my 14" bandsaw.  Likely an all day job, the plastic of the belt is well 
welded into the pulley grooves, both on the motor and drive hub.

-- 
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] buildbot web page

[TJoseph Powderly]

Well the first attempts to use had lots of hangs,
so i put the rpi in the 'ton yen' ( ice box)
to see if it would run longer than 10 minutes.

But,when I brought it out,
it beaded up with so much,
that I didnt try using it untill it was really dry again.
I found a big floor fan works well.
The unit has 3 heat sinks already.

Humidity here is 3x a day showers
and 3x a day changes of clothes
( peeling off t-shirts is a real exercise )

The humidity may help
but I'll keep the air circulating a lot.

tomp

On Tue, Jul 24, 2018 at 7:51 PM, andy pugh  wrote:

> On 24 July 2018 at 09:30, Gene Heskett  wrote:
>
> >> they really need the cooling, its hot and humid here, rainy season ,
> >> near 38C daily
> >
> > Ahh, then yes, lots of cooling.
>
> Unless the heat-sink relies on sweating to work I very much doubt that
> the humidity matters to the Pi.
> In fact it probably helps: https://bit.ly/2LEMh1H
>
>
> --
> 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, 1916
>
> 
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Re: [Emc-users] CAD for LinuxCNC, Freecad

[Nicklas Karlsson]

Did not follow and did not immidiately find anything about Freecad. I tried for 
some simple things and to design parts seems to work rather well but adding 
dimensions, drawing views, FEM and CAM is maybe not very good.

On Tue, 24 Jul 2018 08:56:16 -0700
Chris Albertson  wrote:

> On Mon, Jul 23, 2018 at 11:54 PM Marcus Bowman <
> marcus.bow...@visible.eclipse.co.uk> wrote:
> 
> >
> > On 24 Jul 2018, at 07:33, Chris Albertson wrote:
> >
> > >   What I want and am looking for is a kind of conversational system
> > > where I can walk up to the mill and use it for something simple with no
> > > need for g-code.   I'm going back and forth on what would be best.
> > >
> >
> > I use a library of self-written general-purpose programs for the everyday
> > common tasks. These have a parameter block at the start where I can quickly
> > modify sizes and speeds, so that the program can be modified in the editor
> > for the task on the mill at the time.
> >
> 
> That seems like a good way to start.   I could then have a hand held device
> that allows to enter the parameters.  Text enters means a trip through a
> computer.   But a hand wheel is actually not a bad way to enter numbers

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Re: [Emc-users] CAD for LinuxCNC

[Chris Albertson]

On Mon, Jul 23, 2018 at 11:54 PM Marcus Bowman <
marcus.bow...@visible.eclipse.co.uk> wrote:

>
> On 24 Jul 2018, at 07:33, Chris Albertson wrote:
>
> >   What I want and am looking for is a kind of conversational system
> > where I can walk up to the mill and use it for something simple with no
> > need for g-code.   I'm going back and forth on what would be best.
> >
>
> I use a library of self-written general-purpose programs for the everyday
> common tasks. These have a parameter block at the start where I can quickly
> modify sizes and speeds, so that the program can be modified in the editor
> for the task on the mill at the time.
>

That seems like a good way to start.   I could then have a hand held device
that allows to enter the parameters.  Text enters means a trip through a
computer.   But a hand wheel is actually not a bad way to enter numbers


-- 

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Redondo Beach, California
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Re: [Emc-users] CAD for LinuxCNC

[Gene Heskett]

On Tuesday 24 July 2018 05:09:24 Tim Morley wrote:

> On 07/24/2018 12:17 AM, John Dammeyer wrote:
> > So what OS and CAD/CAM software are users of LinuxCNC working with?
>
> I've been using CamBam (http://www.cambam.co.uk/) as a simple cad and
> cam system. It seems to work nicely on both windows and linux.
>
> Tim

Might be helpfull, but at $149 USD, is way above my pay grade. I'd much 
rather buy hardware with that kind of SS income.  I need a better A axis 
for starters. That $100 4" table from Grizzly/India is mechanically a 
P.O.S. even with a motor on it.
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-- 
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] frank hermann xatc extremely simple automatic tool changer

[Sven Wesley]

Den tis 17 juli 2018 16:00Gene Heskett 

>
> 
>
> This link from one of the comments shows a considerably better idea, but
> their demo video is obviously being done by hand as all the intermittent
> motion could well be converted to gcode and done in 2% of the time.
> Another item would be to reverse the motor depending on the pocket being
> addressed as that would allow bigger gears at the expense of needing to
> invert the motor drive, needed for adequate tightening of the collets.
> Proof of concept, but needs more development.  And again, skips the
> drawbar problem.
>
> --
> Cheers, Gene Heskett
> --
>

Oh, that was a neat solution!
I was thinking of a modified version of the xatc but with the "ratchet" as
a separate tool. But this one I will steal some ideas from for sure. I
think I use the same concept but the wrench will sit on the ATC, not on the
spindle.

Good find Gene!

/Sven

>
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Re: [Emc-users] CAD for LinuxCNC

[Valerio Bellizzomi]

On Mon, 2018-07-23 at 21:17 -0700, John Dammeyer wrote:
> Mini Poll here if possible
> I use WIN-7 and design with AlibreCAD and use MecSoft AlibreCAM to make the 
> G-Code.  As I get closer to getting the Mill converted I could do like I have 
> with the CNC router and run WIN-XP and MACH3.
> Or continue on the path I started with LinuxCNC.
> 
> So what OS and CAD/CAM software are users of LinuxCNC working with?
> 
> Thanks
> John


I use FreeCAD and Blender for the modeling

and PyCAM to convert to gcode

all on Debian



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Re: [Emc-users] buildbot web page

[andy pugh]

On 24 July 2018 at 09:30, Gene Heskett  wrote:

>> they really need the cooling, its hot and humid here, rainy season ,
>> near 38C daily
>
> Ahh, then yes, lots of cooling.

Unless the heat-sink relies on sweating to work I very much doubt that
the humidity matters to the Pi.
In fact it probably helps: https://bit.ly/2LEMh1H


-- 
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, 1916

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Re: [Emc-users] CAD for LinuxCNC

[andy pugh]

On 24 July 2018 at 05:17, John Dammeyer  wrote:

> So what OS and CAD/CAM software are users of LinuxCNC working with?

I would like to use all-FOSS but haven't found anything quite right.

As background I am a Mac user. When it came to a choice between Mach
and LinuxCNC I went with the latter largely as I didn't want to have
to buy a Windows licence. (not a decision I have regretted).
I didn't, at that time, have any real experience with Linux.

I have worked as a full-time CAD-jockey using Autodesk Inventor. I
have also used Alibre  a number of years ago, because it was free. I
did quite a bit of work with it then found my designs orphaned with
the switch to Geomagic.
Now that I have access to a free home license if Inventor I tend to use that.
As a Mac user I like that I can run Fusion360 natively, and the
workflow is enough like that of Inventor that I sometimes use that
instead.
Fusion and Inventor share the same CAM system (bit Fusion CAM has a
few more advanced toolpaths than the free version of Inventor HSM, Or
at least this was the case last time I looked)

I have uses CamBam, and it was OK.
SheetCAM is good for laser / plasma stuff and usable for 2.5D milling
too. Available for Linux too, and the developer is on this mailing
list.

I tried PyCAM a while ago. I liked that it was cross-platform, but at
the time I tried it the 3D toolpath generation took _way_ too long.
Overnight at best...
This might have improved now, though it is no longer cross platform
according to http://pycam.sourceforge.net/

So, I think I am like many others in using Fusion because it is
excellent, but feeling a little cheapened by the experience.

-- 
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, 1916

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Re: [Emc-users] CAD for LinuxCNC

[andy pugh]

On 24 July 2018 at 07:33, Chris Albertson  wrote:

> Yes.  I user Cura on the Mac.  then literally walk the SD card from the Mac
> to the printer.

That's just silly :-)

https://octoprint.org/download/

Makes your printer wireless, and a plug-in provided with Cura replaces
the "save to file" button with a "print with octoprint" button.

Octoprint is fully open-source and has a very active community. Lots
of interesting plug-ins exist for Octoprint too. (like skipping a
failed part in a multi-part build, which it does purely by inspection
of the G-code)

Octoprint also lets you watch your prints with a webcam (I think you
can even view this  directly in Cura)

-- 
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, 1916

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Re: [Emc-users] CAD for LinuxCNC

[andy pugh]

On 24 July 2018 at 07:53, Marcus Bowman
 wrote:

> I used to think I would need manual knobs as well as the computer control of 
> the machine, but in 15 years or so, I have never had the need.

Me too. I kept the manual knobs on my first conversion, and never used
them. Then I retained the option on the current mill, and have never
used them, and then I learned my lesson and didn't bother on the lathe
conversion. But the lathe does have two MPGs on the saddle for those
super-simple "Just need a groove turned" jobs.


-- 
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, 1916

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Re: [Emc-users] CAD for LinuxCNC

[andy pugh]

On 24 July 2018 at 07:31, Marcus Bowman
 wrote:

> For 3D CAD, I use Inventor, but that has no output for CNC, so I will 
> probably migrate to Fusion360 next, when I get time to familiarise myself 
> with that.

There is CAM for inventor. In fact the very same CAM as Fusion. There
are three levels of it, all the way up to very fancy 5 axis.
https://www.autodesk.com/products/hsm/overview

The free version is OK, but rather bizarrely a little less advanced
than the version in free Fusion. So I quite often design in Inventor
than export the model to Fusion.
(And sometimes I just use Fusion all the way, as that runs native on
my Mac whereas the graphics in the VM on the Mac that runs Inventor
are a little sluggish)
I am not sure I would recommend buying Inventor, though. I get it for
free as a perk of the day job :-) It is better than Fusion, I think,
but not by _that_ much.

-- 
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, 1916

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Re: [Emc-users] CAD for LinuxCNC

[Tim Morley]

On 07/24/2018 12:17 AM, John Dammeyer wrote:
>
> So what OS and CAD/CAM software are users of LinuxCNC working with?

I've been using CamBam (http://www.cambam.co.uk/) as a simple cad and
cam system. It seems to work nicely on both windows and linux.

Tim

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Re: [Emc-users] CAD for LinuxCNC

[Gene Heskett]

On Tuesday 24 July 2018 00:17:29 John Dammeyer wrote:

> Mini Poll here if possible
> I use WIN-7 and design with AlibreCAD and use MecSoft AlibreCAM to
> make the G-Code.  As I get closer to getting the Mill converted I
> could do like I have with the CNC router and run WIN-XP and MACH3. Or
> continue on the path I started with LinuxCNC.
>
> So what OS and CAD/CAM software are users of LinuxCNC working with?
>
> Thanks
> John
>
I might be the odd man out John, but I rely heavily on lcnc's looping 
abilities and write my own gcode. I've got 90 line files that take 3 
days to run, sharpening a carbide tipped table saw blade. Shapest blade 
I ever had on that tablesaw too. Output from eagle and pcb2gcode are 
huge 100,000 + lines of code affairs because it has no looping, 
everything is "unrolled". Longest files of gcode I've ever run. I'm to 
slow in my advanced years to grok how to run a cad/cam and make usable 
code, its easier to just write it myself.
>
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--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

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Re: [Emc-users] buildbot web page

[Gene Heskett]

On Monday 23 July 2018 23:58:02 TJoseph Powderly wrote:

> raspberry pi 3B+
>
> test notes:
> i added 3 heat sinks and have a full size floor floor fan focussed on
> it at max fan speed

I have the heat sink kit installed, and an old video card fan rigged to 
blow on the sinks, no thermal probs, but its only 23.3C here, maybe 30 
peak in the afternoons, but the garage its in is air conditioned & stays 
at about 26C.
 
> using logotech sub kbd and mouse ( unused during ssh'd tests )
> with hdmi connected to LG screen
> with official power supply ( mini usb connector 3.2amps )
> boots from 10x speed sd card
>
> i edited the boot files to add
>  isolcpus=1,2,3  idle=poll

LCNC no longer needs that I am told.

> i added a null file named 'ssh' to root (this enables ssh, its just a
> token file trick )
>
> they really need the cooling, its hot and humid here, rainy season ,
> near 38C daily

Ahh, then yes, lots of cooling.
>
> i have no compatible hdwr
> so i ran sim axis
> then ran rotdelta sim with vismach
>
> the response on the machine i ssh'd from was good, i could make a
> movie if you like
> a bit jerky but mouse and keybpard responsive
> theres a but of a heistation when the ssh session is idle for a few
> minutes,
> the 1st char typed takes maybe 2 secs to echo to the terminal
>
> extending if to access hdwr:
> i read the machinekit hal_gpio last nght, it looks simple and i can
> find all the mentioned files
> i didnt check the legal entries in each file
> i skimmed the linuxcnc hm2_raspi file to see how it generated pins
>
> it'd be nice to have raspi gpio in linuxcnc
> i need SPI also due to the single ethernet port
> ( for stmbl or 7i9x or other STM drivers ) so lots to play with
>
> my goto base i686 system is running g540 and a Sable 2015,
>  so i have hdwr to use while i investigate ( play )
> its a parport config running 1950mm/min, stabile & repeatable for a
> few months now.
>
> thank you for all your work, and to all the linuxcnc guys, thanks
> TomP
>
> On Tue, Jul 24, 2018 at 12:13 AM, Sebastian Kuzminsky <
>
> seb.kuzmin...@gmail.com> wrote:
> > On Mon, Jul 23, 2018 at 11:07 AM TJoseph Powderly 
> >
> > wrote:
> > > wow
> > > thanks seb, looking at it now.
> > > "Index of /~buildmaster/dists/jessie/scratch-sim/binary-armhf"
> > > (I'm glad I didnt mangle the web page :-) )
> >
> > What Arm hardware platform are you running LinuxCNC on?  I'm just
> > curious.
> >
> > --
> > Sebastian Kuzminsky
> >
> > 
> > --
> > Check out the vibrant tech community on one of the world's most
> > engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users



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Re: [Emc-users] CAD for LinuxCNC

[Greg Bentzinger via Emc-users]

I started using SolidWorks about 2000 and bought my own license in 2004. When 
the market effectively died in 2007 I decided to let the SW maintenance expire 
since it wasn't earning its keep.
In 2010 I bought the full monte Alibre Design Expert package and it has served 
me well doing most everything SW was for 1/3 the cost. I also use the Mecsoft 
AlibreCAM plugin for milling. I will skip the drama of Alibre being bought out 
by 3D systems before the founding Alibre staff ransomed back the company. My 
main fault with the Alibre staff is they based the product on the Visual DotNet 
platform. (bad programers - should have to go sit in a corner and write a loop 
that prints "I will not write code that links dot net libraries!" in assembly 
code a million times.)
But to be honest for most work, the fastest solution for a 2 1/2D program is to 
fire up a DOSBox window and run a virtual x86 session for BoBCAD gold v12 DOS 
edition. I can draw or solve needed geometry and generate the basic gcode in a 
few minutes. Due to being compiled for DOS (circa 1991) I can run the DOSBox 
app on a raspberry pi and for BOBCAD its like running on a CRAY super computer. 
Its greatest detraction is the built in DOS VGA output coding which leaves you 
stuck with only 640x480 as your only output option.
I once inquired about obtaining the rights to the source code for V12 and V14, 
but BOBCAD was content to keep the DOS version dead and buried. V12 was rock 
stable, V14 I can not comment on as I waited too late to consider upgrading and 
the NEW Windows (buggy as an ant hill) version was out.
Serious thought - if a group of serious programmers formed a open source 
CAD/CAM project for Linux and could show the community a viable 2 1/2 D CADCAM 
suite with a structured published goal list I think many of us using Windows 
based warez that are paying yearly maintenance fees would consider signing on 
as patrons. The ultimate goal would be to drop the commercial warez once the 
software matures enough to cover a users needs. I would be paying $1200/yr just 
to keep my warez up to date. If I could drop the commercial warez to run open 
source and be a $400/yr patron I would be thrilled. Having the option to 
request certain new features and being able to add an additional donation 
incentive would also be nice.
Greg
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Re: [Emc-users] CAD for LinuxCNC

[Bruce Layne]

On 07/24/2018 02:14 AM, Chris Albertson wrote:


That is not going to happen for two reasons
1) the deal is not introductory, It is licensed so that it is free for
those doing less then $50,000 of work per year  Those doing more have to
pay for it


I was unable to find the Fusion360 license agreement on the AutoDesk 
site.  Apparently, it's only available for viewing and clicking "I 
accept" as part of the installation process.  However, I'd be very 
surprised if there wasn't a clause stating that AutoDesk reserves the 
right to alter or amend the agreement at any time.  That's standard in 
these click-through software license agreements that nobody reads.  The 
agreements are very one sided.  The manufacturer owns the software.  
They can and will do anything they choose.


Example:  I seem to recall that Fusion360 was originally free for 
students and anyone doing less than $100,000 worth of work per year.  
Now you say it's $50,000.  Will it be $25,000 next year? Will the free 
introductory offer go away entirely?  If AutoDesk decides that they're 
losing more money in licensing revenue than they're gaining in future 
revenue by adding to their installed base via the free introductory 
offer, then they will discontinue the free introductory offer.  Yes, 
even if they swore they wouldn't and signed in blood.





2) it can save the files in any of about a dozen industry standard file
formats so it is really easy to move your projects both in and out of
Fusion. On the roadmap is to directly open and save to other file
formats.


I recall the AutoCAD DWG file format becoming increasingly proprietary 
and deliberately obfuscated after other CAD manufacturers started 
importing DWG files to help people move away from AutoCAD.  That's to be 
expected.  AutoDesk didn't want to make it easy for their customers to 
leave for a different CAD program that was easier and much less 
expensive.  Then there was the resulting industry push to create an open 
CAD format, the DXF. AutoDesk was the 800 pound CAD gorilla, so they had 
a lot of say in how the DXF format was developed.  Big surprise.  It 
wasn't the universal CAD format that users wanted.  There were different 
incompatible versions of the DXF.  Most CAD companies other than 
AutoDesk tried to standardize on one version of DXF but AutoDesk always 
seemed to have a different version of DXF, rendering that standard of 
limited use.  When you have a de facto monopoly, standard 
non-proprietary file formats are not your friend. Marketing issues such 
as this make me appreciate open source so much more.  Open source 
developers love well documented standards.


Fusion360 is currently among the least expensive 3D parametric CAD 
programs, so it makes sense that they support open standards now when 
they're still working to pull users back from the other 3D CAD programs 
that yanked the market out from under AutoDesk.  In a year or two... not 
so much.  Been there and got the T shirt.  Not my first CAD marketing rodeo.





I'm fan of open source software but


In the first year of Fusion360, I inquired on the Fusion360 forum about 
Fusion360 for Linux.  I certainly wasn't asking for an open source 
version.  I was asking if they'd have a version for Linux, given that 
they had Windows and Mac versions.  I assumed that they were using cross 
platform software development tools and while it wouldn't be as simple 
as cross compiling for Linux, it would be a lot easier than a complete 
rewrite.  I was told by the AutoDesk representative in the Fusion360 
forum that there would never be a Linux version because people who use 
Linux won't pay for software. The response was right up there with 
Microsoft's comment that open source software is cancer.  I tried to 
explain that I paid $1250 plus annual licensing fees for the 
professional version of Eagle electronic CAD software, largely BECAUSE 
there as a stable native Linux version.  Apparently, I'm an aberration, 
because Linux users are all hippie freeloaders.   :-/


I'm not hating on Fusion360.  It's very nice software that's growing and 
improving rapidly.  I think it's much more user friendly than AutoCAD 
was, given the relative nature of CAD, then and now.  Many people have 
been able to take advantage of the free introductory offer to learn CAD 
and do a lot of useful work and that's a very good thing.  The cost is 
reasonable for companies leasing it annually.  I just wanted to make 
sure that people realized that AutoDesk is in business to make money and 
they're not running a charity to give away nice CAD software to 
everyone.  TANSTAAFL. Solidworks et al ate AutoDesk's lunch and drank 
their milkshake because AutoDesk rested on their laurels.  Being the 
monopoly CAD company made them lazy.  Now they're working to earn back 
market share they lost when other CAD companies like Solidworks did a 
better job of meeting the customer's needs.  Competition is a good 
thing.  The end users benefit fro

Re: [Emc-users] CAD for LinuxCNC

[John Dammeyer]

Very cool.
Reminds me of the year when we took our little holiday trailer from Alberta
to California.   Somewhere near Petaluma in a campground my wife was outside
soaking up the rays sun tanning.  I was inside the trailer playing with my
new toy.
https://en.wikipedia.org/wiki/Armatron
John

> 
> No photo?  Here is a link to one
> .bricogeek.com/img_cms/2601-mantis-gripper-robot-arm.jpg
>  arm.jpg>
> 
> The arm is obsolete but the gripper is worth trying.  Google will turn up
> any number of photos if you enter "mantis gripper"
> 


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