[mathking]

I completely agree with Mr. Lavery about the window motors not being useless. We have certainly burned out our fair share of them when we were stretching their capabilities, but in the correct applications they can be very useful. The hubs alone can make them useful for some applications, as they are easy to mount things to without significant machining capabilities. Add the worm gear and they can be used in a variety of ways, as long as you aren't trying to put too much load on them. As Mr. Ferrante said, counterbalancing the load with a spring of some sort can help a lot. Here is an application of this sort of counterbalancing.