Just found a YouTube video about that, problem solved-maybe.  Thanks, Todd

https://www.youtube.com/watch?v=40CRimcwAZo

Martin

________________________________
From: Todd Zuercher

Freecad's g-code tools also includes drag-knife dress-ups.  I haven't tried to 
use them but think I'm about to.  (I have to set up some tool paths for a glass 
cutting head we just purchased (which is more or less a drag-knife.)

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-----Original Message-----
From: Martin Dobbins <tu...@hotmail.com>
Sent: Thursday, June 25, 2020 2:23 PM
To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net>
Subject: Re: [Emc-users] dxf2gcode

[EXTERNAL EMAIL] Be sure links are safe.

I really like openscad, and the uphill struggle with Freecad has just begun to 
get easier.  I had no idea that Freecad could make g code until Todd just told 
me 🙂

The beginning of this video has a pretty good illustration of how a drag knife 
works (it's different):

https://www.youtube.com/watch?v=8jHS2uZpfJg

________________________________
From: Glenn Edwards

All,

I have purchased Q-Cad recently, the DXF portion is free and the CAM costs 
extra, and have found the DXF editor pretty good.  I have struggled with the 
CAM portion that does the DXF to G-code, however.  It does not seem well 
supported- email inquiries go unanswered.  My two-cents.

Best regards,
-- --
Glenn
Rapid Converting LLC
gl...@rapidconverting.com
www.rapidgasket.com<http://www.rapidgasket.com>


On Thu, Jun 25, 2020 at 10:47 AM Todd Zuercher <to...@pgrahamdunn.com>
wrote:

> Freecad can make G-code directly, leaving out the DXF middle man.
> Have you tried that?
>
> Todd Zuercher
> P. Graham Dunn Inc.
> 630 Henry Street
> Dalton, Ohio 44618
> Phone:  (330)828-2105ext. 2031
>
> -----Original Message-----
> From: Martin Dobbins <tu...@hotmail.com>
> Sent: Thursday, June 25, 2020 1:34 PM
> To: Enhanced Machine Controller (EMC)
> <emc-users@lists.sourceforge.net>
> Subject: Re: [Emc-users] dxf2gcode
>
> [EXTERNAL EMAIL] Be sure links are safe.
>
> I've tried two coming from Freecad, both saved as "Autocad dxf",  one
> was a simple 2D fully constrained 20mm square and the other was the
> same thing padded to a thickness of 0.254 mm.  I can try a dxf from
> another source if that is the problem.
>
> Martin
>
>
>
> ________________________________
> From: Sebastian Kuzminsky
>
> On 6/25/20 10:43 AM, Martin Dobbins wrote:
> > I'm trying to use this on Ubuntu 20.04 because I'm looking to write
> > some
> g code for a tiny (Roland) drag knife, I wanted to see how it handled
> corners.
> >
> > Unfortunately, while the gui will load OK when I try to load a dxf
> > I'm
> getting a runtime error:
> >
> > File "/usr/lib/python3/dist-packages/dxf2gcode/core/shape.py", line
> > 609,
> in abs_iter
> >      raise StopIteration()
> > StopIteration
> >
> > The above exception was the direct cause of the following exception:
> >
> > Traceback (most recent call last):
> >    File "/usr/bin/dxf2gcode", line 727, in open
> >      self.load()
> >    File "/usr/bin/dxf2gcode", line 874, in load
> >      self.makeShapes()
> >    File "/usr/bin/dxf2gcode", line 922, in makeShapes
> >      self.makeEntityShapes(self.entityRoot)
> >    File "/usr/bin/dxf2gcode", line 973, in makeEntityShapes
> >      self.makeEntityShapes(newEntityContent, ent_geo.Layer_Nr)
> >    File "/usr/bin/dxf2gcode", line 996, in makeEntityShapes
> >      tmp_shape.AnalyseAndOptimize()
> >    File "/usr/lib/python3/dist-packages/dxf2gcode/core/shape.py",
> > line
> 175, in AnalyseAndOptimize
> >      self.setNearestStPoint(Point())
> >    File "/usr/lib/python3/dist-packages/dxf2gcode/core/shape.py",
> > line
> 190, in setNearestStPoint
> >      min_geo_nr, _ = min(enumerate(self.geos.abs_iter()),
> > RuntimeError: generator raised StopIteration
> >
> > Any ideas for a fix?  This was supposed to be a quick project.
>
> That looks like a bug in dxf2gcode.  Can you post the DXF file that
> causes the problem?
>
>
> --
> Sebastian Kuzminsky
>
>
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