Spool Holder - Ender 3

Yet another spool holder. It has a fast, 2-start thread (16mm pitch) for quick loading and unloading. The end bearing is smaller to allow for a unthreaded lead for easier threading.
The thread tooth has 45 degree sides so it prints great, especially the internal threads.

You will need :
1 - 22x8x7mm roller bearing (608)
1 - 16x8x6mm roller bearing (688)
1 - 150mm M8 bolt or threaded bar
2 - M8 nuts.
2 - 8mm Washers

Tighten the M8 bolt to apply some preload to the bearings so that the reel does not run freely if jerked.