Bondtech BMG Upgrade MK3S FDM printable new sensor integrated

thingiverse

This is a remix of the Original Bondtech BMG Upgrade extruder to integrate the new MK3S filament sensor. Some modifications have been made to make it friendly for FDM printers. The stepper motor installation now requires 4 point screws instead of the original 3 from Bondtech. I have included two versions of the sensor's cover, compatible with PC4-M6 or PC4-M10. This design includes a modified Bear X_carriage. For more information on this part, please visit https://github.com/gregsaun/bear_extruder_and_x_axis/tree/master/optional_parts/bondtech_x_carriage. If you are using the Zaribo X-carriage, make sure to use the following link: https://www.thingiverse.com/thing:3472470. The BOM list for the internal parts is as follows: 1x Prusa MK3 to MK3S upgrade: https://shop.prusa3d.com/en/printer-upgrades/898-original-prusa-i3-mk3-to-mk3s-upgrade-kit.html 1x Shaft Assembly: https://www.bondtech.se/en/product/shaft-assembly 2x Ball Bearing 5x8x2.5: https://www.bondtech.se/en/product/ballbearing-5x8x2-5/ 1x Motor Gear: https://www.bondtech.se/en/product/motor-gear 1x 3X32 mm Shaft: https://www.bondtech.se/en/product/shafts/ 1x Thread insert: https://www.bondtech.se/en/product/thread-inserts/ 1x Thumbscrew Assembly: https://www.bondtech.se/en/product-category/spare-parts/thumbscrew-assembly/ 1x 1.75 / 5.0 Bontech Drivergear kit (Not required if you own a MK3) 1x Pancake motor with at least 16N.cm: https://zaribo.com/stepper-motors/126-zaribo-pancake-motor-by-ldo.html I would like to thank Bondtech AB, Grégoire Saunier, and the entire team for developing this great extruder! This remix combines elements from the original extruder design: https://github.com/BondtechAB, and the X-carriage from: https://github.com/gregsaun. UPDATE 1 (05/03/19): I added a version of the extruder body with a square nut instead of the M3 threaded insert. If you choose to print this version, make sure to use it in combination with "Hinge with 2 mm recession." Added Step files. UPDATE 2 (05/03/19): New sensor cover available. Please print this version as I missed the hole for the screw on the previous one. Sorry! UPDATE 3 (20/03/19): Corrected the filament path after the sensor, thanks to Gabe Condrea. UPDATE 23/03/19: Some minor changes were made to the extruder path and the filament sensor section. Added file lever.stl instead of downloading from my .step file. UPDATE 14/04/19: Removed the fourth hole screw as it was unusable without a special screw. UPDATE 16/05/19: Added "Square method" in some parts where the holes are printed vertically without support, thanks to curt_darius.