Spool roller holder for large hole SunLu spools

cults3d

I recently started using some Sunlu filament and the hole is 75mm. So I had to make a holder that would work with that size as well as the smaller sizes. It uses the usual 7 x 22 ball bearings and an 8 mm threaded shaft. I attached it to my holder bracket. Here is the bracket I made for my Ender 5. https://www.thingiverse.com/thing:3956544 The picture shows this bracket, but you can of course bolt the roller on to any suitable bracket. I uploaded a fixed version later in the day, there was a small piece of material on the top of the shaft thread. You could just cut it away with a knife. 12/2/2019 - Uploaded one with a slightly tighter upper bearing holder. Somebody noticed it was a little bit too loose.