Bambu Lab P2S Rear Spool Holder Back Mount 3D

Boost Me

Keep your Bambu Lab P2S workflow clean and consistent with this back-mounted filament spool holder. I designed this upgrade because my whole print farm is set up with the spools behind the printers (like on the P1S), and the stock side spool mount on the P2S didn’t fit my layout.

This 3D printable arm moves the filament spool to the back of the machine, using the original mounting holes of the P2S base—no drilling or permanent mods required. It’s great if you line up multiple printers side-by-side or against a wall and want all the spools hidden behind them.

Features:

• Designed specifically for Bambu Lab P2S without AMS / AMS buffer
• Positions the spool behind the printer for a cleaner, more compact setup
• Uses the existing mounting holes on the P2S chassis
• Works with standard 1 kg spools and Bambu Lab spools
• Smooth filament path to the stock filament inlet on the back

Compatibility note:
This design was made to be used without an AMS or AMS buffer. I don’t recommend it if you run an AMS, although you’re free to test it at your own risk.

Printing tips (suggested):

• Material: PETG or strong PLA
• Infill: ~30% or higher
• 4+ perimeters/walls for extra strength
• Print flat on the bed for maximum rigidity

Install it, move your spool to the back, and keep your P2S in line with the rest of your setup.