FriiSpray is open source expression using infra-red graffiti technology.
Using a projector, back projection screen, a custom infra-red spray can, laptop, wiimote, custom software made in flash & Johnny Chung lee's white board software. FriiSpray opens up digital graffiti to everyone.
tutorials on how to build everything needed and free download of the friispray program [open source march 09] available at:
frii for expression - totally not free for commercial types!
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