hears the deal I need to hook up a DIY 4th axis running off a PC to index "ONLY" and I need some way to tell the PC when to index and on my fadal VMC I have a spare 110V coolent relay that triggers off a M code .... so my idea is why not use the 110V relay to talk to a 5V switch to tell the PC to index... It looks like it well work to me
and one tryed it ?
Thanks Duffy