Printed Customizable Block Puzzle
This alterable puzzle project is still in progress. I'm happy with the initial 3d print files. As of January 2025 I was working on the solver code. I have not made progress on that solver in a while, but this project is still on my radar.

A printed 5x6 puzzle.

Example puzzle.

Initial lid. It doesn't hold as well as I'd like.

Screenshot of design file, using Sketchup
Klotski
Klotski is a block slide puzzle in which a target block needs to touch all the walls of a gate to allow the gate to raise and get the target block out. Wiki:Klotski. It's a neat puzzle that I first saw as a wooden made set at a friend of my father's house. Eventually, I saw it on a Windows 3.1 machine.
Around Febuary 2023, I created interlocking pieces to a Klotski set.

Klotski puzzle pieces CAD image.

Time to print: ~3h at 45% infill. ~100g

A printed 4x6 Klotski puzzle
Others

A set of all of the 1 to 6 unit block piece combinations

An organization showing many of the mirrored pairs.

A flat landscape of blocks being played with for surface compactness.
Check out the Discord
channel about this project to see up to date news on this.