bondtech extruder for mk3 with filament-sensor and cover

This is designed by Midi .It is licenced under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Refer to the drive gears kit:
https://www.aliexpress.com/store/product/3d-printer-parts-1-kit-Drivegear-dual-drive-gear-extruder-kit-Cloned-Btech-upgrade-for-i3/3375006_32948684255.html?spm=2114.12010608.0.0.34e25b9dPgm9Dh

or
https://www.aliexpress.com/store/product/3D-Printer-Parts-Cloned-Btech-Dual-Gears-DIY-Prusa-i3-Steel-Pulleys-Kit-3D-Printer/3375006_32921