I have CNC router with CNC XPro V3 board, three external drivers, and three NEMA 34 motors. This afternoon, I tried to set up the machine by moving the axis's away from limit switches using jogging buttons on GBRL Panel but the X-Axis and Y-Axis motors don't run. The Z-Axis motor runs. The X-Axis and Y-Axis carriages touch the limit switches. I get Alarm 8 when homing the machine. I think that wires get loose from terminals and headers. I can move the Y-Axis carriage by hand but I think I can't move the X-Axis carriage by hand because the lead screw is under the platform where workpieces are held down using clamp boards. How can I fix the machine without taking the control panel off?
Temporarilly disable limits ($21=0), then move it clear. Once clear, reenable Limits ($21=1) - see gnea/grbl May need a Reset in between the changes to take effect
I took the control panel off the machine and found out that external driver for Z-Axis has green light, driver for Y-Axis has no lights, and driver for X-Axis has red light. I tried switching wires between drivers and it didn't work. The power supply inside the machine generates about 44 VDC. The stepper motor specs are: Eastern Air Devices NEMA 34 5A/10A 1.8 degrees LA348JK-P500 The drivers are MondoStep 7.8 Bi-Polar Stepper Motor Driver. Do I have bad drivers or bad XPro or bad motors?
I found stepper motor drivers at https://www.amazon.com/STEPPERONLIN...fix=stepper+motor+driver+nema+,aps,302&sr=8-5 Are they good?
I got two stepper motor drivers from Amazon today and replaced the bad drivers with new ones. Should all drivers be same? I didn't replace the old but working driver. I got the machine working but I had problems calibrating the Z-Axis because I don't have short metric ruler. The new drivers have fans and the old ones don't have fans.
