Auto build-plate changer for A1 mini

Summary

This is a mod to add Auto build-plate changer to A1 mini.

This is an unfinished, unstable beta version, but I release the 3D data, a list of necessary parts, and instructions for making them in order to receive feedback from a wide range of people.

I am not responsible for any problems caused by the use of the mod.

The current version is “beta 4”.(Added on 1/1/2025)

Operation

References

The idea of using Y-axis and Z-axis and replacing the build plate without adding actuators is based on the public information of the swap mod that is now available on kickstarter.
The information published on this page is a unstable beta version that is during verification and improvement, so if you want a stable version, please consider purchasing the original swap mod.

SWAP SYSTEMS - (brand of Novibar GmbH)

Required Parts

Required quantity for 3 build plates.

• Cap bolt M3x25 4set
• Cap bolt M3x20 4set
• Cap bolt M3x10 4set
• Cap bolt M3x5 6set
• countersunk screws M3x10 4set
• Hexagon nut M3 22set
• Teflon tube Φ4x800mm

How to assemble

Assemble with reference to the photo and the STEP file.

View the fusion 3D model in your browser. (Added on 1/1/2025)

Insert the filament into the Teflon tube; adjust the length of the filament so that the build plate is removed when Z=max.

Change printer settings

Add a G-code that automatically replaces the build plate after printing.

Add the following G-code before the printer finish sound in the Machine end G-code.

;===== change build-plate
G1 Z180 F3000
G1 Y186 F6000
G1 Z185 F3000
G1 Y-4  F6000
G1 Y186 F6000
G1 Y-4  F6000
G1 Y2.5 F6000
G1 Y-4  F6000

Uncorrected defect(Added on 1/1/2025)

Here is the list of issues for which I received feedback.

• Plates may slide out of the stocker due to vibration during printing.
  Putting vinyl tape on the surface of the stocker will improve it, but I plan to modify the shape of the stocker.

Design by Nii on MakerWorld (license: BY).