Ender 3 Spool Holder (drop in)

Drop in spool holder for Ender 3 - prints as one part, no supports

Recommended BOM (note you could probably substitute M3 wood screws instead of the embedded nuts and machine screws)

* 4 - M3 X 6 X 5.3 Embedded Nuts (old link no longer works - possible substitution M3 X D5 X L6) https://www.aliexpress.com/item/4000232858343.html
* 4 - M3 X 20 Machine Screws (https://www.aliexpress.com/item/32798146322.html)
* 6 - 608 Ball Bearings (https://www.aliexpress.com/item/32797489318.html)

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