"-- 5 of 12 -- 3. Loading Filament 3 1. Preheat Method 1 Method 2 2. Feeding Press and hold the extruder lever then insert 1.75mm filament through the small hole of the extruder. Continue feeding until you see filament come out the nozzle. Tip：How to Replace the Filament？ 1、Cutting filament near the Extruder and slowly feed new filament until they are fed into the new filament. 2、Preheating the nozzle and withdraw the filament quickly and feed the new filament. -- 6 of 12 --"