Thank you for providing this website and the information regarding CNC. I am working on my first CNC/Mill project. I have 2 questions, Would you please help me with them:
1- My Y axis is heavy, so I will have 2X 3A NEMA 23 step motors on it. I also need to add a step motor to a rotary table. In this case, I will end up with 4 axis and 5 motors, each motor is 3 amp. My thought is to use your unipolar 4 axis controller and branch from the LPT signal for the Y axis and add a fifth sla7078mpr. In theory this will duplicate the action of both stepper on the Y axis? Do you think this will work? I have limited knowledge in electronics hardware, however I did build PCBs in the past. I also build a PIC based project to drive small step motor through ULN2003. Based on your answer. I can re write the schematic and the PCB if it is OK with you!
2- I am planning to install 6 limit switches. 2 for the Y, 2 for the X and 2 for the Z. How to wire them? I read about this and I have a lot of conflict information.
FYI; I did not mess with the software yet. I will wait until I have my project completed.