It was one of my older projects that I hadn't published before. It is compatible with both 3D printing and wood cutting. I created the 3D model in SketchUp and exported it as a DWG file to allow it to be cut from 2mm wood as well. However, you can easily scale it to fit thicker wooden plates too. I hope this model brings happiness to someone.
You have to put these small pieces together according to the picture. Here and there, it may need a little more force, but no glue is necessary. If it doesn't fit, use a file to correct the edges a little bit.