Spool-Inlay - Renkforce 500 3D printer - and Renkforce filament

This tool may help you to center the "Renkforce Filament Spool" for filaments with 1.75 mm diameter. You may print it with an inlay of 10 %. Thats enough for good stability.
Spool length is 71 mm. It's for more convenient printing.


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