[OLD VERSION] Spool adapter for Anet A8, A6 and others

thingiverse

UPDATE 20.2.2017: PLEASE USE THE NEW IMPROVED VERSION! http://www.thingiverse.com/thing:2122573 This adapter for filament spools is incredibly simple yet very efficient and I made it specifically for the spool holder that came with my Anet A8. It moves smoothly with just the M8 rod that comes with the holder, requiring no bearings at all. It will work seamlessly on any spool holder using an M8 rod. I used every inner spool diameter I've discovered so far to design this adapter, ensuring it fits many different brands of filament spools. Print two adapters and install them on the M8 rod that came with your spool holder. The bare minimum needed is two M8 nuts, one on each outer side of the adapter with the filament spool in between. However, I highly recommend adding two lock nuts to one end of the rod, leaving a small space in between as a guide to keep the rod from drifting towards either side (as seen in the photo). If you use a winged or knurled nut on the opposite side (not visible in the picture), changing spools will be much quicker. But a regular nut works just as well.