Description:
Don't throw away your empty Prusa spools! Convert them into Bambu Lab-compatible reusable spools with this simple adapter.
Problem solved: Prusa spools have a larger inner diameter than Bambu Lab refill filaments. This adapter bridges the gap perfectly.

Why use this solution?
• ♻️ Reuse empty Prusa spools instead of throwing them away
• 💰 Save money - no need to buy/print full Bambu Lab reusable spools
• ⚡ Fast print - uses half the filament and time compared to printing a complete spool
• 🔧 Simple assembly with cable ties

Assembly Instructions:

1. Prepare Prusa spool: Remove the cardboard tube from the center (tip: soak in water briefly to make removal easier). Keep both side discs.
2. Insert cable ties: Place cable ties through the disc slots as shown in the photos.
3. Attach adapter: Place one of the two printed adapters onto the disc.
4. Secure connection: Tighten the cable ties to lock everything together.
5. Repeat: Do the same with the second disc and adapter.
6. Final assembly: Connect both discs together.
   Your converted spool is now ready for Bambu Lab refill filaments!
   Materials needed:
   • Empty Prusa spool
   • Cable ties
   • This printed adapter (2 pieces, PETG)

Attribution: This model is a modified version of "Improved Bambu Lab Reusable Spool Holder" by Blizzard (v2 Print Files for Bambu Filament Refills), available at https://www.printables.com/model/270804-improved-bambu-lab-reusable-spool-holder. Original work licensed under CC BY 4.0. Modifications: Adapted for Prusa to Bambu Lab spool conversion.