AnkerMake M5 Filament Roller

thingiverse

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 brim to help hold the spool to the plate. * I used supports: normal: everywhere. It should only put them inside the bottom of the spool to support the bearing holder. * I used a 0.4 nozzle at 0.2 layer height and 4 walls. * I used a 30% infill and it seems pretty strong. You can go higher if you think it needs to be more solid. * Because my printer likes to have a Z-layer shift if I print at x5 (250mm/s) speed I slowed it down to x3 (150mm/s). It just came of the printer so I don't know for sure if it'll work but pulling on the filament as a test seems to work just fine. Edit: works just fine.