Spool holder for Ender 3 PRO

This spool holder allows to adapt very well coils of any diameter/size (or almost) and to load/unload them very quickly as a 7mm pitch has been used which allows you to go from minimum to maximum in just 8 turns.
The spool holder slides on 3 rings to minimize the contact surface and thus minimize friction. However, it is good to put a little layer of grease on it to avoid squeaks and you will see that it will turn even better, as if it had bearings ([watch as work](https://youtu.be/7ZSrD8p8jQo)).
**Good print!**

**22/12/2020
I moved the screw inward to be able to mount screws with the larger head**


If you found it useful, and if you like, you can offer me a [coffee!](https://www.paypal.me/thorlab), it will be an extra motivation to continue designing.

Thanks to Google Translator for help with translation. ;)