cnc3040t

[magicniner]

I just bought a parallel port card but no luck

Parallel Port cards (and later PC integrated PPs) are a Crap Shoot as far as output voltages are concerned, some BOBs need 5v logic levels, some newer PPs don't deliver that.
Just to be sure have you tested your PP with a printer to ensure it's at least functional?

If you want a Gerbil you'll want an Arduino to keep it in, not a PC :D

Have you considered a stand alone box like the DDCSV1.1 or 2.1? I think that's probably the way to go at this point if you want to move away from Mach3, I'm just about to start testing with one on my little 4-Axis Mill -

[welshkoiman1962]

i just dont know y it wont talk to the cnc