Edit 17.1.2023: Added optimized model with longer base and some extrusions to fit into the frame so it is more stable and easier to use.

This is simple alignment tool that you preferably need when upgrading to dual Z axis to adjust/synchronize height of the Z axis on both sides.

Just slide it under the extrusion frame, check if there is space on one side and if yes, then adjust it so both sides sit on the alignment block.

For faster print position the tool on its back - as it is in the file.

My dual Z upgrade for Ender 3 pro: Dual Z Ender 3 - simple yet powerful + detailed instructions od autora radkoko | Stáhněte si zdarma STL model | Printables.com

If you really like the design and/or just want to appreciate my work and time spend, you can buy me a coffee.