Show HN: I turned a sketch into a 3D-print pegboard for my kid with an AI agent

by virpo on 3/30/2026, 11:20:02 PM

We have pegboards and plywood all over our apartment, and I had an idea to make a tiny pegboard for my kid, Oli. So I naturally cut the wood, drilled in the holes, sat down at the computer to open Fusion 360 and spend an hour or two drawing the pieces by hand.<p>Then I looked at the rough sketch Oli and I had made together, took a photo of it, pasted it into Codex, and gave it just two dimensions: the holes are 40mm apart and the pegs are 8mm wide.<p>To my surprise, 5 minutes later my 3D printer was heating up and printing the first set.<p>I ran it a few times to tune the dimensions for ideal fit, but I am posting the final result as a repository in case anyone else wants to print one, tweak it, or have fun with it too. I am already printing another one to hang on our front door instead of a wreath, so people visiting us have something fun and intriguing to play with while they knock.<p>This is also going onto my list of weird uses of AI from the last few months.

https://github.com/virpo/pegboard

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