Cardboard Spool Rim Only - Remix for California Filament PETG

Remix of the cardboard spool rim only for California Filament PETG cardboard spools.
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updated November 19, 2022

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Edge rim only for card board spools. This is a quick remix to fit for the California Filament PETG cardboard spools. There are three versions included that work equally well. The 4.4 mm is a tight fit, matching the cardboard spool thickness and can prove difficult to place on the spool edge. The 5.0 mm is a bit loose in my opinion. The 4.6 mm is a compromise.

I recommend printing in PETG. It is strong and flexible for this installation. I'm not certain PLA would work without breaking when trying to install. If you print the rings with ABS, shrinkage may require scaling in X and Y for fit. For my ABS test, 0.5% (1 mm) in X and Y resulted in the expected fit.

These rings print quickly, stay in place, and are effective at protecting the spool edges. The edge ring was sized in the design for a 0.2 mm layer height

For the Bambu Lab AMS they address the issue of dust and roller wear from the spool edges.

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