Today I uploaded a video of the small DC motor I have been working on. This motor has a photo transistor embedded in the rear section, an LED is turned on, the light will hit the photo transistor through a small diameter hole in the rotar timer ( a piece of delrin 1 1/4 dia. with a 1/4" hole drilled through) When the photo transistor is turned on it will open the gate in the mosfet which will send power to the small coil pushing and pulling the magnet 180 degrees. (I have also placed 2 photo transistors and LED's in this motor as I am trying to figure out the best way to use one coil, but reverse polarity) The motor is a little noisy as the shaft is spinning so fast, the bearings heat up and are a little loose because I made the housing out of corian. I plan to get a tachometer later so I know the rpm's. To see this motor click here.
I have also made a generator out of delrin that has 66 3/4" diameter magnets. The generator works great so when I get time I will be posting a video of it on YouTube. Well back to tinkering.
Sunday, March 7, 2010
Subscribe to:
Posts (Atom)