hello,
new project is biped robot. I need some large motors at very low prices.
My first ideas are: starter motors from motor vehicles/motorcycles/ lawn mowers, windshield wiper motors.
Any other ideas for cheap motors? I can get the above at a junkyard for dirt cheap.
I'm not concerned about power requirements right now.
Rich
aiiadict AT hotmail DOT com
Ever opened a starter and looked at it? it's got like..... one or two windings on the armature. Dunno about a motorcycle. I know that things like lawnmowers and other electric start small engines usually have decent 12V motors on them. I also just took apart an old Toro Wheel Horse - electric version. It had a 36V DC permanent magnet motor on it, 5/8" shaft, bigger than a big coffee can. It will rip the balls off a brass monkey without a problem. you clamp it in a vise VERY TIGHTLY when you test it. The deck also had two big 36V motors that were the size of a shortening can, but they had weird couplings on them. This winter I plan on making the worlds most insane PWM speed controller for this thing and putting it in a go-kart.
I can't remember who made them, but I'll find out when I get home and make a new post.
Andy
Don't use starter motors for a robot. They are not designed for continuous duty. Windshield wiper motors, on the other hand, are good. However, you will have to gear them down yourself. Not an easy task if you don't have the right metalworking equipment. Stock Drive has the best gear selection I've seen. I picked up a couple of new motors on ebay for $10 apiece.
BRW
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