Step 24: Stepper Driver Completion

The driver chips are the most important part of the board. They handle most of the operation for the stepper motors. It is very important to read all of the instructions and do exactly what it says. I can't emphasize this enough. The driver chips are sensitive to the motor connections. If the stepper wires are not correctly connected, or they are pulled out while there is still power in the circuit, the chips will blow. Furthermore, don't touch the stepper motor wires for more than three minutes the power is shut off. Capacitors on the board and in the power supply are bled very slowly. A multimeter will corroborate this characteristic at the TB6 terminals.