DFRobot OverLord 3D User Manual page 45

3.3 Clean the broken filament inside filament feeding tube
Why:
Sometimes the filament breaks inside filament feeding tube and affects material changing
function.
CAUTION： The following steps generate high temperature in 3D printer nozzle module.
Please be careful during operating to prevent injury.
CAUTION：The following steps will activate electricity. Please be careful during
operating, do not let the PCB of nozzle module touch any metal part or other conductive
part to prevent short circuit and burn of PCB.
How:
1. Select "Temperature—Heatup Nozzle" on main menu, and heat up nozzle to 230℃.
2. Unscrew the golden pneumatic fitting on nozzle module (see how to do this back in 3.1 clean
your nozzle). Pull out filament inside nozzle carefully and leave the white thin tube inside nozzle
where it is.
3. Select "movement--move material" on main menu, press "↓" to let extruder push the broken
filament out.
4. Switch off the printer, reassemble the nozzle module.
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OverLord 3D Printer User Manual
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