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ScottW514
093a7bbbde
The Z session used to reference the lens itself with M103, which is gone: the daemon sweeps the lens onto its hall edge before a controller starts and leaves a marker, and the controller opens the Z envelope on that. No daemon runs behind the harness, so nothing wrote the marker and every Z move was refused, which is what the session's first move ran into. The runner now writes the marker the daemon writes, and the session pins lens_hall_edge_z_mm so the moves are counted from a known height: Z3 is 9 half-steps on the screw and Z4 is 12, so a 1 mm move up and back is 3 steps each way. This is also the check that caught the controller overwriting its own referenced Z at start, which the panel could not show.