Dual extrusion - fast and easy calibration squares

No gaps between pieces then the colors will fuse together as a simple and fast square print with 30x30x4mm

Just merge "a" and "b" file parts and if you want, upscale or downscale Z axis, at your wish. Also, you can do the same at X and Y in order to get big or small sizes.

I would like to see your results by "made one".

Enjoy and have a good color calibration! :)