Alright I'm wrapping my brain around a potential project but having issues finding a good way to drive a very low speed wheel with an air pump. Does anyone know a cheap easy design to capture the air coming out of an air line to spin a small wheel maybe 1 revolution every 5 secs or so?
Also anyone know of easily available and cheap plastic circular rod to work as the axle of said wheel?
Final question, is hot glue safe for aquariums? How about dried super glue?
(someone should really start a post on all the materials safe for aquarium use)