Extruder Stepper doesn't hold position
I have Mega2560/Ramps 1.4 with DRV8825 stepper drivers.
After "connecting" the printer (via Repetier Host), the X, Y and Z steppers "hold" their positions, but I am able to PULL the filament through the extruder (I hear/feel the extruder stepper turning when I pull the filament).
If I connect the extruder stepper to any of the other driver outputs, I CANNOT pull the filament.
I have ALSO connected other steppers to the Extruder output (and it turns).
I have REPLACED the MEGA2560, the RAMPS 1.4 and DRV8825s (all at the same time), and the "issue" persists...
Is this the expected behavior, or should the Extruder Stepper "hold" its position (like the other stepper motors do)?
After "connecting" the printer (via Repetier Host), the X, Y and Z steppers "hold" their positions, but I am able to PULL the filament through the extruder (I hear/feel the extruder stepper turning when I pull the filament).
If I connect the extruder stepper to any of the other driver outputs, I CANNOT pull the filament.
I have ALSO connected other steppers to the Extruder output (and it turns).
I have REPLACED the MEGA2560, the RAMPS 1.4 and DRV8825s (all at the same time), and the "issue" persists...
Is this the expected behavior, or should the Extruder Stepper "hold" its position (like the other stepper motors do)?
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