cube trisection puzzle (customizable)

thingiverse

When I stumbled upon "trisection of a cube" by Erikjuh, I immediately decided to create mine using OpenSCAD. After several iterations, I came up with a result as a customizable "twisted puzzles factory". Just download the code and open it to see how powerful OpenSCAD is. You can use the customizer if you prefer to build your cube (see instructions). I found theoretical help in this very interesting paper from Carlo H. Séquin's CS Division at University of California, Berkeley: Prototyping Dissection Puzzles with Layered Manufacturing (http://www.cs.berkeley.edu/~sequin/PAPERS/2012_FASE_Dissections.pdf). I also relied on G. Hart's Homepage (http://www.georgehart.com/) and screw-puzzles. Instructions The customizer allows modification of three parameters: size of the cube angle needed to twist the last piece to screw it inside other ones clearance value, which is size of gap left between pieces Don't worry if displayed piece under customizer window looks ugly - The generated object will be perfect! Printing is easy. I printed mine with PLA, sliced with Slic3r, honeycomb 3D infill, two perimeters walls, hot end diameter 0.5mm layer height 0.2mm. With an edge of 3cm and a clearance value of 0.2, I had to sand the pieces. So I set default values in customizer for gap size 0.4mm but it depends on accuracy of your printer. (Picture of green cube shows exaggerated gap value of 2mm)