|Project by Jim Jakosh||posted 06-04-2012 07:46 PM||6768 views||56 times favorited||24 comments|
This is a project that I thought I posted but did not. I built this in ‘06 and it is still running. It is called a Mendocino motor and it totally powered by the sun and does not store electricity in a battery but uses it right now. It only runs when the sun is out.
The frame is made from red oak and a the armature is wrapped around balsa wood with an aluminum tube shaft and a hardened point . The spindle seem to want to push forward when it is running so the glass mirror is the front bearing. There are no shaft bearings because it is levitated between the magnets on the shaft and the fixed magnets- friction free!! The big center block magnet is the “field”. The magnets and solar cells were from Radio Shack.
It is a typical DC electric motor that I wound so when the one solar cell powered magnet goes past center the polarity is reversed to push and thus keeps the motor spinning. Turn it around and it turns in the opposite direction. As the sun gets brighter, it spins all the faster.
It has no real purpose except a great conversation piece and demonstration model for a solar motor. I was given the plans from a guy I talked to while buying V belts on line….................Jim
-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!