I hereby want to introduce you to the Ingenuity Extruder, designed for the smart effector.
It's a direct drive extruder which features a hollow-shaft Nema-14 stepper motor, Bondtech LGX drive gear, an eccentric breach which is self-locking, an idler wheel where the spokes act as a tensioning spring and a hypoid bevel gear pair, archiving a gear ratio of 37:7.
The whole mechanism features only 4 moving parts: two gears, the idler wheel and the breach-lever:
I am currently looking for beta-testers, and if there's enough demand I'm hoping to make this a kit sometime in the future! If you're interested in helping please hit me up.