CR-10 V2 Petsfang Direct Drive mod

thingiverse

This remix is designed for the Creality CR-10 V2. 7/30/2020: I lowered the hotend 2 mm to allow for the bed springs to be more compressed, keeping your bed level adjustments in tact and preventing the leveling knobs from falling off due to poor spring compression and machine vibration from previous versions. Adapter plate V3 - I had to move the posts that embed into the hotend mount by 2 mm to stay in line with the recesses on the hotend mount. 6/28/2020: Mount V 2.1 has a notch on the right-hand side to accommodate a cooling duct's full range of motion, and improved angles on the motor mount to true 45 degrees for easier printing. Because the original cable for the extruder motor is so short, you will need to replace it with a longer one that reaches the far end of the X axis, at least 500 mm long. Make sure the wiring is correct before hooking up the new cable, as some require the middle two wires to be switched. I turned the motor 90 degrees to utilize the top of the metal carriage, helping support the weight of the motor. This design choice was inspired by sashalex007's Speed Drive mod, which centers the motor over the gantry to balance the weight. Since the metal carriage is bent instead of machined, I left a tiny gap between the motor and the carriage for variance in the bend angle from printer to printer. I may upload different shim sizes if I can get feedback on how much of a gap there is between the motor and the top of the carriage. For now, if you want or need to shim the gap, you can print a tiny square/rectangular shim in whatever thickness you need or cut a few pieces of paper to size and put them under the motor before tightening it to the mount. Firmware/slicer updates: Because the motor is crossing over the X-axis gantry, this mod WILL shrink your Z-axis by approximately 42 mm (the thickness of the motor) to avoid crashing into the angular support brace mounting brackets. I increased the adapter plate thickness by 1 mm for version 2, keeping the hotend mounting screws from bottoming out on the metal carriage behind the adapter plate. This moves the center point of the nozzle -1 mm on the Y axis (X is still at stock nozzle position). You'll need to update your firmware and/or slicer settings accordingly to keep things from crashing. Both files are uploaded in their printed orientation. Support settings: For the hotend mount, I used Cura's tree supports, touching only the build plate. Support interface on, grid pattern, 25% density, 2 mm thick. Z gap between support interface and model is 0.2 mm For the adapter plate, I used standard supports with the same support options. Other parts: I included the 40 mm fan cap, part cooling duct, and BLTouch mount from the original Petsfang Titan direct drive mod for convenience. Original 'thing' files are here: https://www.thingiverse.com/thing:2907538