Show HN: I turned a sketch into a 3D-print pegboard for my kid with an AI agent
AI-generated 3D-printable pegboard toy from a hand-drawn sketch.
We have pegboards and plywood scraps all over the apartment. I wanted to make a tiny one for Oli, or maybe even hang one on our front door instead of a wreath so visitors would have something to play with.
I had already cut the scrap wood and drilled the first board when I sat down at the computer, ready to lose an hour or two in Fusion 360. Then I looked at the sketch on my desk, took a photo, pasted it into Codex, and added the only dimensions that mattered: the holes are 40 mm apart and the pegs are 8 mm wide.
About a minute later I had the first set of pieces. From there I just iterated a little: print, test, adjust, repeat, until the pegs fit snugly, the pieces felt good by hand, and the gears turned smoothly.
Everything in this repo stays as small Python generators instead of hand-edited meshes, which made those tweaks easy. The time I did not spend drawing every variant in CAD turned into time I could spend printing, testing, and playing with Oli instead.
The current set is a 40 mm system with seven play pieces, one tuned peg, four gears, and two printable boards.