Ender 3 Small Diameter Spool Adapter

thingiverse

The holes in the center of filament spools aren't perfectly standardized, and I've noticed that occasionally the stock spool holder for the Ender 3 doesn't fit every time.\r\n\r\nSo I designed a smaller-diameter spool holder that presses into the stock one and extends out to the back side. I included a thumbscrew to lock your spools firmly in place during printing.\r\n\r\nThis is a structural part that takes some weight, so infill settings are crucial!\r\n\r\nI recommend at least 30% density with four external perimeters, to ensure it won't break when you load it down with a heavier spool. Ideally, you should print it 100% dense, but that's probably not necessary if your printer has good layer adhesion.