Using this Bambu Lab AMS lite Filament Funnel Unit is easy. First, make sure you've picked the right version (left or right) for your feeder unit. When you insert the filament, the unit will automatically pull it forward. If there's an issue with the insertion, the sensor will let the 3D printer know. Before you start, double - check that you're using it with a compatible Bambu Lab AMS lite system. For installation, visit the Bambu Lab Wiki to learn about replacing the AMS lite Rotary Spool Holder. To keep it in good shape, regularly check the filament detection sensor board for any dirt or debris. If you notice any problems, contact Bambu Lab support for assistance.