Until they update the firmware with new logic on the filament track switch should always return back to default state.
Right now the High Precision Nozzle Offset Calibration will not work with Filament Track Switch connected due there is a chance the track if left X cross pathway after a print operation. It doesn’t return back to default state.
ie.
Input A → Output B
Input B → Output A
Workaround:
- With the Filament Track Switch connected, manually preload each both nozzle with the corresponding AMS, ie.
AMS with Black Filament → Input A → Output A → Left Nozzle
AMS with White Filament → Input B → Output B → Right Nozzle
You may need to resetup the filament path for this default straight line setup.
- Disconnect the bottom connector on the Filament Track Switch and plug it directly onto your AMS.
- Now run the High Precision Nozzle Offset Calibration.
My solution for Bambu Lab Engineer is to have return state.
Return to Default State after all filament retracted to each AMS or after print job completion:
Input A → Output A
Input B → Output B
