Kawai Tsugite customizable puzzle

thingiverse

Kawai Tsugite is a Japanese joint that can be assembled in three distinct configurations - one in a straight line and two at right angles. Building a wooden Kawai Tsugite is well-documented on this webpage: https://www.ethan-brammeier.com/kawai-tsugite-joint. My goal was to recreate the assembly process using OpenScad, mimicking the techniques employed by skilled Japanese woodworkers. This involves cutting a pyramid corner, removing three prismatic sections, and allowing for smooth assembly. Upon opening the scad file, you'll notice how seamlessly this process translates into OpenScad code. The design can also be easily customized using the built-in Customizer tool - simply click on the "open in Customizer" button to get started. In all cases, the puzzle pieces remain identical. You may begin by printing two of them and enjoying the fun challenge of assembling the Kawai joint. Printing four pieces yields a more complex puzzle, with the primary difficulty lying in disassembling it. To achieve this, you'll need to slide each block diagonally, expanding the occupied surface (refer to the partially assembled image). Printing eight pieces finally allows for the creation of a perfect cube. Have fun exploring the possibilities!