Flanges for cardboard spools (5.5 cm diam holes, Overture TPU spools)
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Center flanges for overture TPU cardboard spools to reduce rolling resistance (5.5 cm diam holes)
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Center flanges for Overture TPU cardboard spools to reduce rolling resistance. I had issues with the friction between the cardboard and the spool holder. This increases the emptier the spool is, as this reduces the mechanical advantage the printer has.
The flanges fit spools with about 4 mm thick cardboard and 5.5 cm diameter holes.
Printed in PLA on speed profile (0.25 mm layer height + adaptive layers), but any hard plastic such as PETG should work fine too. The important part is that the friction is low, so stay away from matte / silk filaments.
The part snaps in place. You need one for each side of the spool.
Original CAD model is also public in OnShape: https://cad.onshape.com/documents/96a69bedb93683ab69598ca1/w/0120179bb408bda5c595b474/e/d36debcbfd5e6bd2d4cda933