Snapmaker U1 - QuickChange Spool - Improved Clips

I wanted to improve and iterate on my Spool Holders to add a more robust clip solution that did not just rely on the thickness of the part as well as be able to change out the spool holder types as I have Rotating Spool Holders without bearings, with bearings, and fixed spool holders. I have designed a clip and plug solution where users can mount a quick change plug to their printer and add and remove Spool holders as they want. I have started with a fixed spool holder as this was easiest to model and test. This spool holder mount comes with 2 clip types - both should be printed in a tough but semi-flexible material such as PETG.A preloaded clip - Requires a M3x8 screw to spread the clip arms to secure the mount to the printer.Pros: One Screw per Mount, Very SecureCons: PETG Creeps over time under load. The PETG will eventually want to stay in the arm-spread position Making removal more difficult. A Reverse Clip - Requires a M3x15-M3x20 to pull the arms in to remove the clip, and accep