Anet A8 Spool holder and frame for wide spools.

thingiverse

I've modified the spool holder frame, as seen here: https://www.thingiverse.com/thing:2026493 by Speedy4433, and the spool center, which I've customized to accommodate a wider spool, can be found at this link: https://www.thingiverse.com/thing:2184790 by jterranella. To extend the threaded rod on the spool center, I used this extension: https://www.thingiverse.com/thing:2188802 by 3DExtruded. I lengthened the thread on the spool center since it was too short for my spool. Furthermore, I created additional extensions for the original threaded rod that came with the printer. These new extensions are square at the top to ensure the spool rolls over the bearing and not the thread over the frame. Additionally, I added stops at both ends so the spool can never shift off the frame. I experienced this issue on my previous frame and trust me, it's something you won't want to happen again. To acquire a new bearing, I ordered from AliExpress: https://www.aliexpress.com/item/1PC-608ZZ-623ZZ-624ZZ-625ZZ-688ZZ-626ZZ-F688ZZ-Radial-Bearings-3D-Printer-Reprap/32790254235.html?spm=a2g0s.9042311.0.0.pIEEIl. The ideal bearing size to order is 8x22x7mm.