Computers & Mobile Fun & Games Science
Free promotional plastic resin sampler puzzle

I don’t often blog promotional giveaways, but this one is pretty sweet: Minnesota’s Proto Labs offers injection molding in a bunch of different plastics. The really cool part is, if you’re in North America and you register at their site, they’ll send you a free 4x4x4 unit polycube puzzle, with nine pieces, each molded in a different color and from a different polymer resin. There’s green HDPE, white polypropylene, mauve ABS, clear polycarbonate, yellow polycarbonate/ABS blend, orange polyoxymethylene, red polyester, blue nylon, and black glass-filled nylon. And purple horseshoes! I already snagged mine!


I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

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