Making a powered arm to paint rainbows for you? Nice work if you can get it.
The thing is actually deceptively complicated: it’s got to have wiring to start and stop the paint cans, and a gearing system to make sure the swing arm doesn’t go too fast or too slow.
Very cool. We could use a few more of these in Seattle. I wonder what the rainbow capital of the world is? Probably somewhere weird.
[via Adafruit and Hack a day]