Hello everyone,
I assembled my reprap from parts that i bought 5 months ago. It worked well in the first 4 month. My reprap's Z axis is actuated by 2 stepper motor
LDO-42STH47-1684A as shown in attached file.
The problem is now the right one sometime rotates in the opposite direction with the left one or not rotate at all. Especially, when i were trying to do the Z offset. I tried to re-wire the motor, actually, i re-wired all the electronics parts but the result is still the same. Is it because of the motor or the wiring or the coding in Arduino processor? I have tried to fix this problem for nearly a month.
Please help me. I am so depressed right now.