¶ Applicable models of printers
A1 mini
¶ Z-axis motor
The Z-axis motor is a stepper motor mounted on the bottom of the printer that drives the toolhead in the Z-axis.
¶ What to use?
- Z-axis motor is burned out
- After analyzing the logs, official technical support confirmed that the Z-axis motor is faulty.
¶ Safety warning
Important!
It's crucial to power off the printer before conducting any maintenance work, including work on the printer's electronics and tool head wires. Performing tasks with the printer on can result in a short circuit, leading to electronic damage and safety hazards.
During maintenance or troubleshooting, you may need to disassemble parts, including the hotend. This exposes wires and electrical components that could short circuit if they contact each other, other metal, or electronic components while the printer is still on. This can result in damage to the printer's electronics and additional issues.
Therefore, it's crucial to turn off the printer and disconnect it from the power source before conducting any maintenance. This prevents short circuits or damage to the printer's electronics, ensuring safe and effective maintenance.
For any concerns or questions about following this guide, please open a new ticket in our Support Page and we will do our best to respond promptly and provide the assistance you need.
¶ Tools and materials needed
- Z-axis motor for Bambu Lab A1（Contact Customer Support for purchase）
- Flat tweezers
- H2.0 Allen key
- 20 minutes
¶ Remove Z-axis motor
¶ Step 1: Remove the Z-axis end cap
Use flat tweezers to remove the Z-Axis end cap.
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¶ Step 2: Loosen the coupler and remove the Z-axis motor screws
1. Loosen the 4 coupler screws without removing;
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2. Remove the 3 Z-axis motor screws.
¶ Step 3: Remove the baseplate
- Tilt the printer backward and remove 2 screws. Remove the cable buckle.
- Remove 14 screws (be careful to distinguish it from the cable buckle screws);
- Pull and stretch the nylon ties to loosen the baseplate and then remove it.
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¶ Step 4: Remove the Z-axis motor
Take out the Z-axis motor and disconnect the motor cable.
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¶ Step 5: Remove the coupler
Remove the coupler of the Z-axis motor.
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¶ Install the Z-axis motor
¶ Step 1: Install the coupler
Install the removed coupler onto the new Z-axis motor and tighten the 4 screws.
Note: There should be space at the bottom.
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¶ Step 2: Install the Z-axis motor
1. Place the Z-axis motor as shown in the figure below and straighten the cable.
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2. Install the new Z-axis motor, pass the motor cable under the USB cable, X-motor wire, etc., and connect the Z-axis motor wire to the mainboard.
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3. Put the printer back and install the 3 screws of the Z-axis motor.
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¶ Step 3: Install the baseplate
1. Install the baseplate, align the position, and lock in 14 baseplate screws;
2. Install the cable clamp, and lock in 2 cable clamp screws;
3. Place the printer upright.
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¶ Step 4: Install the Z-Axis end cap
Snap the end cap back into place; If operation is difficult, you can use an Allen key.
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¶ End Notes
We hope the detailed guide provided has been helpful and informative.
To ensure a safe and effective execution, if you have any concerns or questions about the process described in this article, we recommend submitting a technical ticket regarding your issue.
Please include a picture or video illustrating the problem, as well as any additional information related to your inquiry.