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Make: Technology on Your Time Volume 25 by Mark Frauenfelder

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Photography by Leland Sindt and James Underwood

LASER POINTER PRINTER

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A scanning laser “paints” on photo paper.

By Leland Sindt and James Underwood

Several years ago, we came up with an idea for a new project: mount a paintball gun to a computer-controlled turret and turn it into a gigantic “inkjet” poster printer. Searches revealed that this had been done already by Benjamin Gaulon (aka Recyclism), who called it PrintBall.

We talked about scaling up the design with multiple paintball guns, but back-of-the envelope calculations determined that ...

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