I am planning to replace with a combination of MEGA 2560 and RAMPS 1.4 or 1.6 but I do not know how to make connections for Z axis with 2 stepper drivers. On both RAMPS boards on the Z location there are 2 pairs of 4 pins. Shall I insert the first stepper driver in the Z stepper driver location and the second one on the E1, and the 4 pins cables should be placed where ? ...both on the 2 Z pairs pins location or separately ?
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