prusa3d / Prusa-Firmware-MMU

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Invalidate Idler+Selector homing flags when Retry from ToolChange Error #236

Closed DRracer closed 1 year ago

DRracer commented 2 years ago

If FSENSOR_DIDNT_SWITCH_ON was caused by misaligned Idler, rehoming it may fix the issue when auto retrying -> no user intervention. So first invalidate homing flags as the user may have moved the Idler or Selector accidentally.

Beware: we may run into issues when FINDA or FSensor do not work correctly. Selector may rely on the presumed filament position and actually cut it accidentally when trying to rehome. It is yet to be seen if something like this can actually happen.

MMU-191 MMU-180 MMU-178