Bondtech Extruder Block

A simple Bondtech extruder block with a tightly-constrained filament path, capable of firmly driving both flexible and rigid materials. This part is compatible with 1.75mm filaments, NEMA-17 motors, and M6-threaded tubing connectors. The output side needs a slender tubing connector, such as [the brass ones from this set](https://www.amazon.com/Creality-Original-3D-Straight-Pneumatic/dp/B07PLFZKKY).