Fix 9620 #9717
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Fix 9620 #9717
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Description
Fixes #9620 for FlashForge profiles for ADM 5M / Pro 0.25 and 0.8 nozzles profiles where the initial purge lines retract instead of extruding resulting in failed beginning prints.
The problem is that the GCode does not explicitly set the extruder mode (absolute or relative). If the firmware is in absolute mode (G90 for axes, M82 for extruder), then the extruder moves (E values) behave as absolute, causing retractions when positive values are expected.
The fix (also confirmed by OP) is to set the printer to absolute positioning for axes (G90) and relative positioning for the extruder (M83) before the purge moves.
By adding G90 and M83 before the purge, the extruder will correctly extrude during the purge lines.
I wonder if it is necessary to even have an explicit
machine_start_codefor the 0.25 and 0.8 nozzle profiles or if it can inherit the one defined on resources/profiles/FlashForge/machine/fdm_adventurer5m_common.json ?Screenshots/Recordings/Graphs
N/A
Tests
Tested directly with 0.25 and 0.8 nozzles on FF Adventurer 5M Pro.