Don,

it took me a long time to figure the software side out. I have access to Autocad and Solidworks and use that for the design works.

2D: I save the design files as .DXF and then open the file in Vectric Cut2D. This is the software that generates the cut files for my copy of Mach3. (Just make sure you select the correct Post Processor - read export option for Mach3)

3D: I save the design files as .STL and open them in Vectric Cut3D. Once again, this generates the cut files for Mach3.

Have a look at www.vectric.com as they allow you to download a demo/trial version of their software.

Regards,

Martin.