Low friction Wanhao I3 spool holder

I wanted a low friction spool holder to hang rolls or loose filament on. I decided to carve up https://www.thingiverse.com/thing:1889438 and use the parts to create what I wanted. This uses 123mm of the leftover 5/16 or 8mm threaded rod from the Z-Brace mod and some leftover 608 bearings from spinners. I used a vice to press in the bearings but you can carefully use a hammer if that's all you have. It's a tight fit so be careful and sand if necessary. I also created a roller to use with just pl