@dc42 said in Continue print after power cut, after manually homing first:
https://duet3d.dozuki.com/Wiki/Setting_up_to_resume_a_print_after_a_power_failure
You can setup your ressurect-prologue.g macro to home the printer however you like, including manually.
At the very least, your sys/resurrect-prologue.g file must do the following:
Home the printer, without crashing the head into the print. On a delta, or on a Cartesian or CoreXY printer with a Z max homing switch, you can home all axes. On other types of printers you may have to skip homing Z and use a G92 command to tell the printer the current Z coordinate. If you choose not to home an axis, then even if the print head hasn't moved since power down, the motor positions will change by up to 4 full steps compared to their position at power down. Note: recent firmware versions write a G92 command containing the coordinates at the time of failure into resurrect.g, just before the call to resurrect-prologue.g. So you may get away without homing axes. But it is still best to home any axes that you can (typically X and Y on a cartesian or CoreXY printer).