We are using custom code for the APT that was done many years ago. But my system is not connected to that one since those are all unix computers, mine is the only windows type. So I need some code on my end, I am using .dxf out of AutoCAD and .prt files from UGS NX.

Right now all my parts are done with only line segments and that's all I really need right now; But eventually processing arc segments will be needed.