UMO compatible spool holder

This is yet another spool holder, compatible with Ultimaker original.

It uses 2x 8x16x5 bearings, M8x150 mm bolt and some printed parts. By printing 2 sets of cone centering parts, you will be able to use it for 2 type of reels: narrow reels with ID up to 65 mm and wide reels with ID 50 mm. I found these two common types of spools when ordering plastic from European suppliers.

1. If you have a reel with inner diameter of 50 mm you need to print:
Base flange - 1
Spacer 8.5x11x8 - 1
Cone center - 2
Hand knob - 1
M8 x 150 mm bolt - 1
8 x 16 x 5 mm bearing - 2 (to press fit to cone center)

2. If you have a narrow reel with inner diameter from 60 to 70 mm, you need
Base flange - 1
Spacer 8.5x11x8 - 1
Cone center large - 2
Hand knob - 1
spacer - 1
M8 x 150 mm bolt - 1
8 x 16 x 5 mm bearing - 2 (to press fit to cone center)


This give you a friction less spool holder and easier life for your material feeder.