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ln2_generator.jpg

One of the more intriguing exhibits at this year’s Maker Faire Bay Area was Ben Krasnow’s liquid nitrogen generator rig. Ben built the entire assembly, for under $500, with parts he scrounged (over a year) on eBay.

In this video, shot at the Faire, intrepid reporter Circuit Girl, aka Jeri Ellsworth, interviews Ben. We apologize for the loud ambient noise and the gonging robo-Gamelan next door. Hopefully between the video, the above illo, and Ben’s blog posting, you can get the gist of his set-up.

(And yes LN2 can expand with explosive force and can burn living tissue. All sensible cautions apply.)

DIY liquid nitrogen generator

Gareth Branwyn

Gareth Branwyn is a freelancer writer and the former Editorial Director of Maker Media. He is the author or editor of a dozen books on technology, DIY, and geek culture, including the first book about the web (Mosaic Quick Tour) and the Absolute Beginner’s Guide to Building Robots. He is currently working on a best-of collection of his writing, called Borg Like Me.


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