Setting up a ramps 1.4 on a prusa i2. X, Y, E move fine. Using newest marlin. Z however, just sits there and buzzes. First thought it was a problem with the wiring, nope it was correct. Then I looked at the current on the polo... nope no matter what setting it was at still didn't move. So, I went into marlin and went to adv.h and changed the setting to use 2 stepper motors for z.... swapped the exact same stepper from z to e1, leaving z empty... plugged the motors in and it worked perfect, without changing a single setting on the polo, or wiring, or in config.h. What would cause the Z stepper to just freeze and buzz but the e1(z2 i guess) stepper to work just fine. Did not change anything under config.h, just swapped stepper to E1 and set the setting for dual steppers under adv.h. Ideas?
↧