Bondtech BMG + E3D V6 carriage for BLV MGN12

thingiverse

UPDATE 2020-03-15: If you have a BLTouch, note that the original carriage I posted required some shims to bring the sensor down far enough. I have removed that version of the carriage from this design and created a new version: Improved Bondtech BMG + E3D V6 + BLTouch carriage for BLV MGN12 with the BLTouch mount in the correct place, cable management holes and a much improved cooling duct. ~~UPDATE 2020-02-22: By request added a version with a BLTouch mount. I don't personally own a BLTouch so I went off the dimensions at https://youprintin3d.de/media/pdf/54/75/b4/f5a1c8_77037f55e5d542309d9fc178165c9f3f.pdf. For this mount, the X offset is -30 and the Y offset is 0.~~ UPDATE 2020-02-15: Added a new cooling duct with a completely different design. This duct is giving me even better results - I'm seeing almost perfect 70 degree overhangs at 0.2mm layer height, and even 80 degree overhangs are not absolutely awful. See part NewPartCoolingDuct. Also added V3 of the WireLoomAdapter - this helps keep the wires away from the extruder gear. ~~UPDATE 2020-01-18: Added a new V3 version of the part cooling duct - this aims the air a few mm higher and at a shallower angle and is giving me better printing results.~~ This is an X carriage to hold a Bondtech BMG extruder and E3D V6 hotend in a direct-drive configuration on the BLV mgn12 3D Printer mod for Anet A8 / AM8 / Prusa I3 clone. It includes a holder for an 18mm inductive/capacitive sensor. Also included are adapters for 1/2" ID (approximately 18mm OD) split wire loom for cable management, as well as a part cooling duct. The part cooling duct is inspired by Semi-Circular Anet A8 Fan Duct (although it was modeled from scratch), and the wire loom adapter on the X motor end is based on the one from BLV mgn12 3D Printer mod for Anet A8 / AM8 / Prusa I3 clone (although again modeled from scratch). Use ``` #define X_PROBE_OFFSET_FROM_EXTRUDER -40 #define Y_PROBE_OFFSET_FROM_EXTRUDER -26 ```