Adjustable Masterspool - OptiSpool
I kind of got fed up with Masterspool designs that use a ton of material-
The Optispool
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December 16, 2025
Description
PDFThe Optispool is based on the little Masterspool design from DAS FILAMENT (https://www.thingiverse.com/thing:2791930) , but it has been made adjustable to 3 sizes to accommodate different refill widths. It has also been made circular to enable it to be used in filament dryers like the Filadryer S1/S2.
In the near future an option that is compatible with bearing - based filament holders will be available.
Printed in PETG.
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Model origin
The author marked this model as their own original creation.