This is a low-friction spool holder specifically made for the new one-piece version of the Bambu Lab A1 spool holder, introduced in late 2024. It uses ball bearings to reduce drag and is optimized for flexible filament printing, such as TPU.

Unlike many other designs, this version ensures proper clearance around the bearings to avoid friction against the housing or roller. The result is smooth, unrestricted spool movement and improved extrusion consistency—especially useful when working with soft materials.

Compatibility
✅ Designed only for the updated one-piece A1 spool holder 
🚫 Not compatible with the original multi-part spool holder 

Key Features

•  
• Clean look that matches the A1 printer aesthetic
• Uses two standard 608ZZ bearings for smooth operation
• Holds spools up to 68 mm wide
• Easy to install and remove

Parts & Tools Needed

• 2× 608ZZ bearings
• The printed parts 
• Original allen key

Assembly Instructions

1. Print 3 parts on one plane.
2. Remove any support material.
3. Insert a 608ZZ bearing into each end of the roller.
4. Place the roller into the holder frame.
5. Mount the completed assembly onto the A1’s new one-piece spool holder.