@thomas_rudloff said in Z endstop at high end should set Z position to maximum: Z endstop at high end should set Z position to maximum and not to zero after homing. It does if you have declared your Z endstop to be at the high end in your M574 command, unless you have overridden that using a G92 command in your homez.g or homeall.g file. https://duet3d.dozuki.com/Wiki/ConfiguringRepRapFirmwareCartesianPrinter#Section_Homing_Z_to_a_Z_max_endstop_switch