Re: [Emc-users] Isel & Linux

Tue, 17 Jul 2007 09:57:28 -0700

Jon Elson wrote: 

I don't know if this is apropos, but...

I also have Bobcad/CAM 16.1, but rarely use it.  Most of the 
work I do is the simplest 2-D work cutting instrument panels and 
such.  So, I wrote a bunch of small programs that create the 
G-code to do the most common things, like rectangular cutouts, 
round cutouts, etc.  I also have some that handle a hole circle 
and grid of holes, and a table of arbitrary X-Y hole locations.
One input file, and it will generate spotting, drilling and 
tapping programs for all the holes.  So, I use this stuff far 
more than cad/cam, because it is faster to create, and more 
efficient to machine.  Many of these have been ported over to 
the "scripts" on EMC2, but I have them on my web site, too, at
http://jelinux.pico-systems.com/gcode.html

That is exactly what I do right now is using my own scripts where objects such as odd circular forms and other shapes are created using Pascal programs to generate the Isel g-code.
Scripts are absolutely great for repetitive jobs.

The problem though is that I need to make solid stock objects too with limited 3-d features and it is great to have the cad-work/drawings for that so I want to have those done from CAD side.

I quoted the wrong link for ems sorry.
Here is a good example of about exactly the complexity I do and Linux cad I would like advice on to do similar.

"http://www.emachineshop.com/audio/13-advanced-3d/video.html"






  

    
My question is, is there a simple  2-d 3-d cad program  with DXF or such
output I can feed into EMC  for  toolpath generation?

    

  

  
EMC doesn't take DXF, it takes RS-274D, also known as G-code.
DXF is good to move a drawing from one CAD system to another, 
but it leaves so much info out of the transfer that it causes a 
number of problems.





I know that, but it is easy to use a dxf to G-code converter.





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