A quick and easy stirrer for mixing culture media, photo chemicals, molecular gastronomy, or what have you... Needed materials:PWM muffin fan12v power brick (must be a regulated laptop/dvd player brick, not a cheepo wallwart as the specified PWM controller uses a 555 timer chip with a 12v maximu...By: lairdkelly
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from Instructables: exploring - technology - robots http://ift.tt/170omlj
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