Ender 5 Z-Axis Axial Thrust bearing Mount
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The Axial thrust bearing combined with a rigid lead-screw compression coupler completely eliminates Z-axis banding.
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This version is designed for the Ender 5 and may also work with the Sovol SV05. You will need longer M3 Bolts to install this upgrade.
Z-Axis Axial Thrust bearing Mount. The Axial thrust bearing combined with a rigid lead-screw compression coupler completely eliminates Z-axis banding caused by the stepper motor “wobbling” under the weight of the X-gantry.
Do not use Flexible Couplers, the whole point is to remove vertical wobble, Flexible couplers make the print quality worse when used with Thrust bearings.
The required bearing is an AT Thrust Bearing 9X20X7mm (F9-20M) - I recommend you apply a small amount of grease to the bearings on both sides before installation.
eg AT Thrust Bearing 9x20x7mm (F9-20M)
Please print this in ABS pr PETG so it doesnt warp from the heat of your bed and the stepper motor itself.
As a result of my testing, I learned a couple of things that might help others.
- Lead screws are never straight (not even brand-new ones)
- Alignment of the lead screws and X-Gantry is critical to get right
- Adding a 1/4" bearing (6.3 mm) inside the top section of the Coupler (between the stepper shaft and the bottom of the lead screw) will stop the uneven shaft surfaces from rubbing against each other and adding Z artefacts to your print.