Cube Gen 2 E3D (v2)

thingiverse

2018-04-02 - Updated Version: I rapidly came to realize several issues with the initial design and have since updated the following: 1. Filament Feed Alignment 2. Spring Tension Placement - old version caused the finger to wander out of alignment 3. Stronger Frame New version has been working better than expected, so much so that I might upgrade the printer further with a heat bed. For those, like me, who still have an old Cubify Cube Gen 2 lying around, here is an upgrade to get rid of the default print head assembly and replace it with a E3D V6 setup. This upgrade came after I intentionally destroyed the old main board and replaced it with a TEVO TARANTULA MOTHERBOARD MKS BASE V1.4 since it can handle a 24V supply. This is designed to reuse the existing stepper with the drive gear fitted in place. The overall design would be better with a new stepper motor, as the gear is a little close to the stepper. What you will need: 1. E3D V6 Hotend Assembly 2. One stiff spring. I used the springs that came with the bed leveling kits. 3. 4x M3 40mm bolts 4. 4x M3 nuts 5. one U-Groove ball bearing and appropriate screw to keep in place: U604ZZ 4x13x4 EDIT: Old parts list, just get a few M3 40mm bolts, nuts, and washers. That and one M4 40mm bolt, nut, and washer for the spring at the rear of the finger. And one M4 20mm Hex Head bolt + nut + washer for the U-Groove bearing 2020-02-28 Update: buddybu was kind enough to play around with the print. Please see his comments and attached picture. The bottom two screws should be 25mm M3. Assembly: Assembly is easy. Strip the old cube head entirely, removing the metal frame that the stepper motor is bolted to. Print all of the parts and assemble as such: 1. Main Body to the cube print head 2. Insert the support plate 3. Insert the rigid plate 4. Insert the E3D cooling tower 5. Bolt the stepper in place, through the main body, support, and rigid plate 6. Assemble the bearing unto the finger and affix to the main body 7. Insert the spring at the top - I used a 20mm bolt to keep the spring in place. It sits snugly on top of an M3 hex nut. For cooling, I printed one of these E3D v6 Hotend - 40mm Fan Duct as I had a 24V 40mm fan spare.