Added cutout for easy removal of stock fan shroud. No longer requires complete disassembly for servicing.
I am proud to introduce a brand new take on a direct drive extruder conversion for the Creality CR-10 which requires no additional parts and uses nearly all of the stock components.
I designed this because the other designs I have seen created for this have the extruder aligned with the Y-axis. This causes the X-axis and Z-axis to loose printable area because of the extruder possibly hitting the frame.
My design remains well away from any of the frame rails and uses even more of the stock components.
Be sure to read through the Post-Printing section.
The stepper mount endures some serious compression forces and should be printed solid.
The left roller wheel mounting bolt puts a similar pressure on the plastic of the left side hole. Make sure to print with wall thickness large enough to make solid at that point.
Print the carriage mount upside down.
Print the stepper mount stepper side up.
- Layer resolution is your friend. Don't skimp for time, and print as small as you can for the strongest parts. This is a fastening component and benefits from better quality greatly.
Upon print completion use your contact adhesive of choice to mate the two pieces together, ensure good alignment and cover all edges that touch each other around all sides.
Remove the carriage bolts, you will have to remove the Teflon tubing inlet on the hot-end heatsink to remove the right bolt.
Attach the new mount and secure the bolts.
Teflon Tube Prep
With the spare Teflon tube included (or if yours didn't come with an extra or you don't have an extra, use the existing... no way back) insert it into the hotend with the tube clamping nut and fully seat it into the bottom of the heatsink (you may want to do this hot to ensure full seating).
Remove the extruder stepper and spring gear assembly from the X-axis rail (removing the stepper gear first makes removing the spring assembly a million times easier) and insert the bottom right screw through the spring gear assembly, new mounting plate, and stepper (when looking from the top of the stepper). This will allow you to swivel the assembly while you trim the tube to the appropriate length.
Once your tube is trimmed you are ready to complete the assembly of the extruder stepper in opposite steps as the disassembly from the X-axis arm.
If you don't have cable extensions you can pull back the cable braid and tape it back to provide free slack for the extrude cable to separate from the x-axis stepper and limit switch cables.
This cable setup is not ideal as there really isn't enough slack for the extruder cable to reach the end of the x axis and the bed cabling to not pinch.
Cable extensions are highly recommended, dare I say necessary.
Otherwise you can set it up like I show here.
With my filament mount adapter.