opinions on automotive power window motors ?

Honestly...they're crap for robotics. Power hungry, EMI noisy, and seldom provide the same torque/speed in both CW and CCW rotations. Use your money for a power chair motor, if you are interested in the torque.

Of course, power window and windshield wiper motors are fairly cheap; power chair motors go for a lot more. But if you can find a local repair shop for wheelchairs you might be able to get a better deal than what you'll find on the Web.

Burden's

Three bolts on the bottom of an 80mm case flange or face, perhaps?

-- Gordon

pogo wrote:

Thanks for the info. Burden's( thanks to MetalHead for that tip!) is where I got the data listed below. I went there looking for wheels and discovered the window motors for cheap price, which led to my post here.

Thanks again !

B.C. means "Between Centres". I'd imagine the holes are at the corners of an 80mm triangle. And, yes I _did_ spell it right ;-) Phil

You Da Man! Thanks!

with pittman, maxon, and other high quality motors available at ~10% of retail prices via various swap meets, ebay, etc. i don't know why so many robotics hobbyists insist on using such crap. i guess they're more rabid about being "hobbyists" than i am.

in any case, you'll want to measure before you drill your holes. the last time i read something like that on a motor datasheet it actually meant 3 bolts 120 degrees apart on an 80mm diameter circle, *not* 80mm between centers.

chris

For me, I like to know I can get spare parts at reasonable prices. Getting one-off motors at a swap meet scares me a bit. I know it is irrational, but hey, people believe in "Intelligent Design" too.