RollerBars - Mini Filament Rollers for 625 bearings
Description
Very simple and small filament spool rollers. Suprisingly stable. Only uses ~9 grams of filament per side. You need 4x 625 bearings for a complete set of 2 rollers. Fits every spool width. Because this design uses 625 bearings, which are smaller than the very commonly used 608 bearings, filament spools with sides thicker than 5mm won't fit! (But i haven't seen those yet) Very useful if you quickly need some rollers, as a backup, or if you simply don't want to spend too much filament!
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