These are the Z axis parts I modeled to use three individually controlled steppers. Since my frame build started with the standard configuration spreadsheet one major goal for this was to be able to use those standard 3030 (main frame) and 2020 (heated bed frame) extrusion lengths. Therefore all basic dimensions are based on Scott's original models which should allow for fairly easy conversion if your build is based on the configurator as well.
My other Hypercube Evolution remixes can be found by going to this collection:
I am using a Duet2 WiFi with the Duex5 addon board to allow for independent control of three Z steppers for tilt correction. See this Duet3D documentation page for more information:
Feel free to leave any comments or suggestions. If you use any of this please post a make and/or remix. Step files provided for all files.
Although I've built the printer to the point it will home, tilt adjust, mesh bed compensate and the X carriage can be moved in the full range of motion, I am going to leave the work-in-progress tag on this until I actually get some prints off of it. Please check the change log below for any updates.
All parts print without supports in the orientation provided.
Z Anti-Backlash Nut Brackets
All 3mm nuts are the standard thickness stainless steel square nuts available on Amazon.
There is a small groove in the parts that is intended to help hold the LM12UU bearing in place. Since this is printed along the layer lines it's fragile. If it breaks off it should still hold the bearing in place ok. Be careful not to over tighten and distort the bearing.
Use two M3x20mm screws for the LM12UU bearing cap.
Be sure to pick the right parts for the anti-backlash nuts you have. I've modeled parts for both the Zyltech and the Amazon generic nuts. I've only printed and tested the Zyltech ones though since those are what I'm using. Please let me know if you have any problems with the Amazon ones.
For the Zyltech Version:
Use two M3x10mm screws to hold the anti-backlash nut in place.
For the "Amazon" Version
Use two M3x10mm screws along with two M3 square nuts to sandwich the ABL nut between the mount and Amazon_ABL_Nut_Cap.stl.
Example Nut I used to model this:
Z Stepper Mounts
I lined my setup up by locating the Right Front Z stepper mount as far forward in the frame as it would go. It rests against the aluminum right angle bracket as seen in the pictures.
I located the Left stepper mount to line up with the center of the bed frame.
Z Rod Bracket
I had a clearance issue with my BLTouch and the Zesty Nimble Chimera+ mount i'm using so I had to make these as short as possible. Instead of locating the 3030 frame piece these mount to 100mm down from the top frame piece I moved them to 95mm. Your setup is going to be different depending on what heated bed you are using, what size spacers, etc. Just check clearances everywhere and let me know if clearance can't be achieved without redesigning parts.
This section is to list some basic facts about my build. This is important because many of my design decisions are based around the specific parts I've selected for my build.
Frame: 8020 Inc. 3030 extrusions.
Heatbed Frame: Zyltech 2020 extrusions.
Linear Rods: X 8mm, Y 10mm, Z 12mm
Controller: Duet3D Duet2 Wifi w/Duex5 expansion board
Z Probe: BLTouch
Hotend: E3D Chimera+
Extruders: Zesty Nimble
Power Supply: Meanwell LRS-350-24 350W PS
Heatbed: 713 Makers Mic-6 build plate w/Keenovo 120V 750W Silicone heatpad
4/29/2019 - Redesigned teh Amazon_ABL_Nut_Cap.stl to remove the two M3x6mm screws since they don't fit tight in the mounting flange anyway and this part needs to be kept from rotating at all. I modeled pegs for all four holes and added a chamfer at the base of them to press against the mounting flange to ensure it stays tight in place and can't rotate.
4/28/2019 - Accidentally uploaded an earlier version of Z_AmazonABL-Nut_Bracket_Right_Front.stl. Uploaded the correct version.
4/27/2019 - Added a version of the anti-backlash nut mounts to fit the generic nuts like what you can buy at Amazon.