A1-mini bearing spool holder

A1 Mini Spool Holder with Bearings Balls(Low-Friction Upgrade)Upgrade your Bambu Lab A1 Mini with this simple but effective spool holder modification featuring integrated ball bearings for significantly reduced friction and smoother filament feeding.The design prints in two parts and mounts directly onto the original spool holder arm. Once assembled, the spool rotates on embedded bearing balls, minimizing resistance and improving print consistency—especially for high-speed prints.The bearing retainers are available in two configurations:8 balls per track → maximum stability and smoother rotation6 balls per track → works well and reduces the number of bearings neededAssembly can be a bit fiddly due to the small components, but is fully manageable and results in a sturdy, reliable setup.Once mounted with a spool, the holder becomes almost invisible, maintaining a clean and low-profile look while greatly improving functionality.Key features:Low-friction spool rotation using ball bearingsI