V2.0 of my rolling screw extruder.
Actually a complete new design.
Complete printhead weight just 117g;
Its much simpler to build, needs just 2 rollers, two printed parts and some small parts.
This design allows to adjust the force on the filament with just 2 screws.
Roller are 10mm dia, 3mm hole, 6mm long, 10*0.5 thread.

Thingiverse link:
https://www.thingiverse.com/thing:5153261

I will update as soon as i finish the driver.