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dot-bob / Marlin-Duplicator-6

Marlin firmware for the Duplicator 6
GNU General Public License v3.0
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Heatbed hit bottom after installing glass bed #4

Closed yufanyufan closed 6 years ago

yufanyufan commented 7 years ago

After installing glass bed and re-adjust z home, the heat bed hit the max of z each time changing filament, and may damage the step motor.

I think this is because in the changing filament routine, the machine automatically lower the build plate to 175, with out compensate the thickness of glass.

timbit123 commented 7 years ago

I have the same setup and never had issue, did you unscrew the bolt behind the bed that trigger de switch?

dot-bob commented 6 years ago

Your ending gcode needs to be modified to prevent it from moving too far. You could also modify your configuration.h in the firmware to shorten your max z travel and verify software endstops have been enabled.