The LEGO® bricks model used in this work is adapted from Programming with OpenSCAD by Justin Gohde and Marius Kintel, published by No Starch Press in San Francisco in 2021. The corresponding OpenSCAD source code can be found in the public GitHub repository CodeSolutions (https://github.com/ProgrammingWithOpenSCAD/CodeSolutions.git), which contains solutions to examples and exercises from the book.