Ultimate Reusable Spool - BambuLab Refill Swapping

This spool is fully 3D printed and solves one of my biggest frustrations:
wanting to use a filament color for just one or two prints, then switching colors—only to realize I’m out of empty spools.

Even with 15+ reusable Bambu Lab spools, this still happens to me more often than I’d like… and it’s incredibly frustrating.

That’s why I decided to share this model—I’m sure I’m not the only one running into this problem. Here is a video of me showing how to use it - 

The spool is identical in size to an original Bambu Lab spool and is designed specifically for Bambu refills.
I recommend printing it in PETG or Tough PLA, but feel free to experiment. I haven’t tested standard or matte PLA yet, though it should work just fine.

If you’d like this design adapted for other filament brands, leave a comment and I’ll look into it.

If you enjoy this model and find it useful, consider buying me a coffee or a beer ☕🍺—it helps support future designs!