Sometimes spools fall of the AMS Lite of my Bambu Lab A1. To prevent that from happening just 3 small clips are needed. If the spool inner diameter is to large you may need an adapter to bring the inner diameter to 53-58 mm. There is also a kind of 'turn' spool lock (spools 1-3 and 2-4) which is a bit more difficult to use.

The clips can be printed with (half or full) triangle hat or no hat. If you do not want a triangle hat then set its height to 0.0 . The number of grip-rings can also be changed.

I print only with PETG and a 0.4 mm nozzle. Brim or support is NOT needed for ALL stl files.