The project for the day was to do some firewood splitting. Off camera, there was a pile of 18 – 24 inch tree rounds. They were a freebie given to us by a city dwelling neighbour (it cost $$ to dispose of trees in the city, most people are more than happy to give it away for free!)
After I calmed down, I looked around and noticed there wasn’t a cloud in the sky. Checked the forecast and it said that it was going to be above normal day in November for a warmth. Hmm… I thought that if I could get a couple of hours of charging into the battery, it might be enough. It was a small 7.2 Amp hour Gel battery, so it would need a lot of time to charge. (Just need enough for the generator started, once it’s running, it can charge the battery too)Dug through some of the old ebay solar stuff. Found an 60 watt DIY solar panel, MPPT charge controller, alligator clips and some wire. Sat down on the steps and rigged up a quick charging station. I kept the battery and the solar panel in the sun the whole time.
As the sun travelled across the sky, the panel was adjusted/moved to
get most charging. By 3:00pm, the battery had charged for 6 hours. Decide it was a good time to see if there was enough juice to start the generator.
The goal was to build a wind powered generator from a cordless drill. It could be used to charge up a battery. The battery could then be hooked up to a light bulb from a car or a string of LED lights. Handy for a shed, outbuilding, pump house, boat, small room or workshop. The video just covers the basics and like many of the Cedar Workshop videos, it’s for learning and having fun.
Started out removing the leads to the trigger, made a hub from a 4-1/2″ v-belt pulley, attached blades, and ran some drill press tests. The factory gearing on the small DC motor presented some interesting results. To simulate a high-speed wind turbine, the cordless drill was attached to a drill press running at 792 rpm. The results were interesting. The low (driver setting) produced 4+ amps and just over 18 volts, but was hard to turn. The high-speed setting (for drilling) produced a low 6 volts and a dismal .8 amps.
The next step is add a rudder, mount it to a pole and get some real world feed back.