April 17, 2026
Description
Don't know what to do with cardboard cores from filament refills? Make yourself a pen holder!
For now, I've designed two sizes:
100mm fits into the spool from:
- Prusament
- Rosa Filaments
88mm fits the spool from:
- Bambulab
- Sunlu
- Spectrum The Filament Refill
Cover photo:
Bambulab version printed with fuzzy skin
License:
Creative Commons — Attribution — Noncommercial
8
Fishbone Workshop
