Universal spool holder ET4 adapter

Find more upgrades for ET4 printer:
1/ [Y Belt back holder reinforcement](https://www.thingiverse.com/thing:4166801)
2/ [Y Belt Tensioner](https://www.thingiverse.com/thing:4166953)
3/ [Universal spool holder ET4 adapter](https://www.thingiverse.com/thing:4164041)

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Simple but usefull adapter to hold the "[universal filament spool holder by Butchja](https://www.thingiverse.com/thing:2070272)" in an Anet ET4, Ender 3 or similar printers. Easy to print, proved and well dimensioned thread.

Easy instaalation with 22 and 13 spanner.

Extra material:
-M8 rod (170mm aprox.)
-3x M8 self-locking nut.
-2x washers (optional)
-2x 608ZZ bearing

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Puedes ver más mejoras para la impresora ET4:
1/ [Soporte reforzado trasero de la correa Y](https://www.thingiverse.com/thing:4166801