motors just vibrate
HI i just flashed Repetier on my prusa I3 running a mega 2560 and ramps 1.4 .The Extruder motor does extrude/retract although reversed. The X,Y,Z steppers just vibrate loudly . Bed heater and nozzle heater both function normally too . Any Ideas ? Thanks in Advance
Motors vibrating have either not enough current (there is a poti to set proper current, see docs of driver) or it gets blocked or acceleration is too high (microstepping not set as you think?) steps per mm too high, jerk too high or only one circuit has a connection, also it is unlikely to have the same contact problem on 3 motors.
The 8825's are nominally toggled for 1/32 microstepping, but I've tried other settings with no success. Here is my current configuration.h motion settings:
I need a sanity check. My accel and jerk setting don't look high to me, I've tried tuning pots. Why won't my motors go? They just freeze and buzz. Drivers get hot and buzz.
to copy them to eeprom so config values get used again.
What is strange is
This setting is driver dependent so it means y axis uses different driver.
The low acceleration should be no problem if used.