Stories
Field notes from parents and build logs from the workshop. Updated when something actually worth reading happens — no content treadmill.
Kid + Parent
How a planetary gearbox fits inside a launcher toy
Ring gear, planet gears, sun gear — the engineering behind our planetary gear launcher, and why the mechanism makes the toy better than a simple pull-string.
Kid + Parent
Designing the 12-piece Japanese burr puzzle
Tolerances, test prints, and the one joint that kept slipping — how we designed an interlocking burr puzzle that assembles in sequence and holds its shape.