The stock Z motor mount for Ender-3 style printers doesn't align the leadscrew properly, which can introduce Z-binding/wobble and other print quality issues.
This design has 2 versions with different frame mounting options, both with 4 mounting slots for small adjustment on the motor:
- v1.1 (orange part) uses the stock hardware and mounting holes
- v2.1 (purple part) uses additional screws and T-nuts for dual Z-axis/motor upgrade
Note: It is highly recommended to add an Oldham coupling to compensate for any minor misalignment and relieve any binding issues
Update 04/10/2024: Added v1.1 and v2; removed outdated files
Update 05/25/2024: Updated to v2.1 and new images
Update 06/05/2024: Updated description (no changes to models)
Hardware Details
v1.1 (Stock Hardware)
- 2x M4x18mm flathead screws
- 2x M3x16mm button head screws
- 2x M3x6mm button head screws (extra screws for secure mounting; not required)
v2.1 (Dual Z-axis/motor upgrade)
- 2x M4x16mm button head screws
- 2x M4 T-nuts
- 2x M3x16mm button head screws
- 2x M3x6mm button head screws
Print Settings
- Layer height: 0.20mm
- Perimeters: 3
- Top/bottom layers: 5 layers
- Infill: 15% gyroid
Assembly Instructions
Disassembly
- Disconnect the Z motor cable and unscrew the stock motor mount
- Loosen the bottom set screw of the Z motor shaft coupler
- Lift the gantry and secure it by placing something underneath it
Assembly
- Loosely mount the printed part on the motor with 2x M3x16mm and 2x M3x6mm screws
- Mount the motor to the frame with the appropriate hardware
- v1.1 - 2x M4x18mm flathead screws
- v2.1 - 2x M4x16mm button head screws and 2x M4 T-nuts
- Connect the Z motor shaft coupler and tighten the set screw
- Adjust the motor until the leadscrew to parallel to the frame, then tighten all screws
- Move the gantry to the top and check for any binding issues
- Connect the Z motor cable and perform a bed leveling routine and other calibration tests
Tags
The author marked this model as their own original creation.