Accouplement Coupling NEMA 17

Coupling for Nema 17 no spring effect
Accouplement pour Nema 17 sans effet ressort

Use the file coupleur_1 for put the button on Z axis on your printer (CR10 or clone)
Utiliser le fichier coupleur_1 pour décaler l'axe Z de votre imprimante et pouvoir mettre un bouton de rotation.

For Knob see: https://www.thingiverse.com/thing:3692479

Additional parts:
You need 3 screw HC M4-5 (ISO4027 or Din914)
(You can use a normal screw M4 too)
like this:
https://fr.aliexpress.com/item/120pcs-M4-8-DIN914-304-stainless-steel-grub-screws-Cone-Point-Hexagon-Hex-Socket-Set-Screws/32718783017.html?spm=a2g0w.search0104.3.1.55c35b8dSHy2d5&ws_ab_test=searchweb0_0,searchweb201602_8_10065_10068_319_317_10696_10084_453_10083_454_10618_10304_10307_10820_10821_537_10302_536_10843_10059_10884_10887_321_322_10103,searchweb201603_53,ppcSwitch_0&algo_expid=320565cd-a975-48d5-baaa-5bba375c5098-0&algo_pvid=320565cd-a975-48d5-baaa-5bba375c5098

You need too:

https://fr.aliexpress.com/item/New-5PCS