Re: [CAD_CAM_EDM_DRO] Re: How to Program a CAD / G-code/Machine commands freesource code?

elwolv wrote:

>
> CAD science programming old books discuses only CAD as graphics
> science and not the the current thinking of how it is done.
>
> I see the problem of attempting to build a general piece of SW. it is
> endless and they are correct in that. however, for specific machine
> for specific limited work, we do not need to be capable of reading or
> generating all formate in the world..... that is for life time
> company work.
>

Let me just throw in my take on this whole issue. I have
Bobcad/CAM, which works pretty well. But, for so much of what I
do, mostly pure 2-D work, making control panels, CAD is just too
much effort for something simple.

Instead, I have created a bunch of small C programs that write
efficient G-code for the types of operations I do most often.
These are for milling out round and rectangular pockets,
"trepanning" round and rectangular holes (machining around the
edges, letting the blank drop out and then finishing the outside
dimensions), drilling a regular grid of holes or a specific
list of coordinates, etc. I can string the output of these
program runs together into a single large G-code program quickly
with a text editor.

See http://jelinux.pico-systems.com/gcode.html for info on some
of the programs, you can download the C source code from there.
I have a few more programs that aren't on that page.

Jon