mach3 on cnc masters mill - Newfangled Solutions CNC ...
There are quite a few limitations to having a usb port on your cnc. Ok. toroid tranformer @ $60. (30,000)Capacitors, between $10- $30. C-11g breakout board @ $120. Mach3 $150 ( from cnc 4pc) Estop switch $13. ac switch, fuse block,misc 2 $20. So right around $400 and your time to assemble it.