This is my first post here I posted this in the general discussion and realized it probubly belongs here ...Im building a large printer and need extra support on the z axis. I was wondering if anyone has experience with connecting 4 z axis motors to a arduino mega pololu shield 1.4. The bored has 8 pins in the z axis but the wiring diagram only shows connections to 4. If it is possible, would i utilize the extra pins or wire them in sequence. and can the drivers (A4988 stepper driver) handle the extra two motors. any help would be greatly appreciated!!!!