Variable size Spool Rotation System (Updated for 608 bearing)
thingiverse
This is a spool holder meant for a number of different sized spools. It rotates freely about its center axis with a bearing to make feeding filament into your 3-d printer as smooth as possible. Instructions Everything is meant to be press-fit but depending on your machine you may need to sand down some edges or pad with some rubberbands. I would, however, recommend superglueing the parts together. Step 1: Use pegs to mate the spoolholder part with the spoolholderbase part. Apply super glue in all points of connection and set aside. Step 2: Place bearing on the extruded tip of the bearingholder part. Step 3: place the open end of the spoolholderbase part If the fit is not snug enough, wrap the bearing in a rubberband until it fits.
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