I don't think you'll get a CAD program to output G code, this is a function of the CAM software or a third party add-on.
Re. your boards, just use VST it's easier only joking, looks a nice job.
LOL yeah VSTs are much easier!! I guess im just a sucker for punishment..

I was looking at VCarve im not sure if this can effectively CAD, CAM and Output to Machine but it seems the lines with some software get kinda blurred.

I assume if you pick software that does it all you kinda get a Jack of All trades master of none? However, vcarve looked pretty sweet but as of yet I dunno.

DESIGN (CAD) > G-CODE Conversion (CAM) > Output ( ie MAch3 or Linuxcnc) > Parallel Output to Stepper Board > Output to Steppers motors on CNC. ..Clive
Cheers clive that makes total sense now.

I think for now im gonna try and master the copy of mach3 I have then look into other machine control later.

I have heard KKam4 can output to these chinese machines as you can select what control code goes to what pin on the parallel port. Again I have no direct experience.

Tomorrow im gonna hack open the control box and take some pics. I am quite tempted to fix the earth issue (if its broke) and maybe tackle this automated drill speed control MOD if it looks easy.

I will definitely upload pics and ask before the soldering iron appears.

Cheers for all the feedback. Particularly as I am clearly asking numb nut style questions. I guess we have to start some where LOL.