Posted by Mark under DIY Projects, Solar
Read part one here if you haven’t already seen it.
I put the new larger motor that I got at American Science and Surplus into my solar fan. Unfortunately even though the guy tested it for me in the store, the juice that my solar panels were giving it just wasn’t enough to spin it as fast as I need. Oh well, it was only 60 cents. So I went back into my very small parts pile and got out another smaller motor from AS&S that is not quite as powerful as I want, but it is better than what I was using, and it will do until I can find the perfect motor. I just wanted to get my solar fan running since we are quickly running out of days hot enough to need it.
Alright, so I got the second-choice motor in there, tested it BEFORE I soldered it in place, things seemed to be good. So I soldered the wires, put the panels into the sun shining in through my window, reached for the on switch, and the sun went behind a cloud. That was 2 hours ago. It has been raining ever since. AAARRG! I only needed 10 more seconds of sun to test the wiring. Ten seconds! Stupid solar.
I’m pretty sure that it’s all set up properly, but I don’t want to assemble everything until I’m sure. Tomorrow may be our last hot, sunny day here in Indiana for the year, and I have a big day of being parked outside planned so I may just have to assemble the thing and see how it goes.
I still need to find a 1-2V 200mA motor with high rpms. If anyone has an angle for me I’d sure appreciate a heads up. Thanks.