HOW TO – Build a solder paste fridge

HOW TO – Build a solder paste fridge

Jeff Keyzer recently started doing surface-mounted soldering and wanted a way to keep the solder paste fresh (which needs to remain between 32-50°F). So he took an old Peltier cooler found in the trash and added a PID Controller. The results, a low-cost solder paste fridge for the shop.

PID Controlled Solder Paste Fridge

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Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. His free weekly-ish maker tips newsletter can be found at

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