Ender 3 Adjustable Z Motor Mount (Ender 3 / Pro / V2 / Dual Z)

Adjustable Z motor mount for Ender-3 style printers Compatible with stock hardware and dual Z-Axis/motor upgrade
56
512
7
2015
updated June 5, 2024

Description

PDF

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Update 04/10/2024: Added v1.1 and v2; removed outdated files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
  1. Disconnect the Z motor cable and unscrew the stock motor mount
  2. Loosen the bottom set screw of the Z motor shaft coupler
  3. Lift the gantry and secure it by placing something underneath it 
Assembly
  1. Loosely mount the printed part on the motor with 2x M3x16mm and 2x M3x6mm screws
  2. 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
  3. Connect the Z motor shaft coupler and tighten the set screw
  4. Adjust the motor until the leadscrew to parallel to the frame, then tighten all screws
  5. Move the gantry to the top and check for any binding issues
  6. Connect the Z motor cable and perform a bed leveling routine and other calibration tests

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Model origin

The author marked this model as their own original creation.

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