AnkerMake M5 Filament Roller

One of the filament rolls I got from my local pallet return store had a very small hole (about 30mm) in the middle. I noticed that other filament rollers on Thingiverse are designed for a larger hole. So taking some cues from from a sewing thread spool and a couple of design attempts later I have this. The washers are used to keep the bearings from rubbing up against the non-movable parts of the printer. The narrow side should go toward the bearing.

This holds both that small hole spool as well as the Anker spools.

* This takes two 608 bearings. I used [these](https://www.amazon.com/dp/B0B4JJ9KFL?psc=1&ref=ppx_yo2ov_dt_b_product_details) because I had them. They seem alright but may need oiled. They seemed a bit stiff at first but seem to be loosening up.
* My bearings fit pretty snugly and I had to work a bit to get them in. I used a squeeze clamp around both ends to press them in but you can probably just start the bearing and press down on something hard.
* I printed with a