robo-rainbow from mudlevel on Vimeo.
Hmmm, I would have made a straight upright spray bar so that you could bomb while riding by. Probably arduino controlled with POV software to drive the spray pattern and timing. The rig is too big and slow to evade the authorities.
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I'd describe it as elegant, rather than "big and slow".A rainbow raises so many smiles, even when you don't know how it was made...
I'll wait in the grassy knoll ready to jump the guy with the pot-o-gold.
Veeerrryy nice! The trailer bed seems to be inspired by at least one Instructable... And I love trying to figure out just what the thought process/es was/were that came up with the idea in the first place - and then how to actually do the thing!