We have received & installed all of the physical equipment on our Joe's R&P CNC Router and have everything working with one exception. All of the limit switches (five of them-X,Y & Z Home, x++ & y++,no z++ switch) are hooked up in series and three of them also duplicate home switches. I'm using Mach3. I cannot get the system to home. The z axis closes the limit switch at the top (also the z axis home) but will not back off the switch. I have read the instructions thoroughly and have tried every variation I can think of to no avail. The homing & limit pins are set, home neg is not enabled and auto zero is. Slow zone is set to .125" & I’ve varied “home off” from .125 to 2, both positive & negative. None of this works. Can someone give me or direct me to help on this item. I think I'm ready to go when this is solved. I’m very new at CNC work and also at using forms. This, in fact, is my first attempted post, so please excuse any errors. I will try to attach my .xml file.