Auto-Rewind Spool Holder for Anet A8

thingiverse

These parts (and a 200-mm M8 rod) will equip your A8 with an auto-rewind spoolholder, which keeps tension on the retract so filament spools won't get tangled. Check out the original thing for the auto-rewind bits needed to complete this setup. Use one of the SpringRound_* springs; its tab will engage with the lock block. You'll also need a 200-mm M8 rod since the 150-mm rod that's part of the A8's stock spoolholder is too short. However, a 175-mm rod could work if you can get it at a good price. Two 608ZZ bearings are also required for this project. Using just the spoolholder by itself might be an option, but where's the fun in that? The design concept is similar to https://www.thingiverse.com/thing:2141857, yet it's an original from-scratch creation.