¶ 1. Automatic retracting
(1) Click Retract on the screen and wait for the retracting finish.
(2) Pull out the filament from the Teflon tube.
¶ 2. Manual Retracting
(1) Heat the nozzle to 200C on the screen.
(2) Unlock the extruder, pull out the filament from Teflon tubes.
