Hey folks, I have been thinking about doing a little hobby project for while, but didn't have the right knowledge to do it until now. Basically, I need a relatively small Low RPM, high torque DC motor that can be controlled by a microcontroller. I'm using the arduino duemilanove and have become pretty familiar with it. Depending on the rating of the motor, i'll probably use an h-bridge to actuate the motor, instead of powering it straight from the arduino. I'll need the motor to spin both ways. It needs to spin at relatively low RPM, probably like 0-5RPM, maybe just a tid bit higher. The rpm needs to be able to be varied. I think that all depend on the power you supply it, right? I'll just use PWM to control the RPM. The motor will be pulling a wire string tight. It also needs to stay locked in place once it has pulled it to a certain tension (i'm not sure if a motor can do this. would i be thinking of a gear in this case?). I think the max tension in the wire will be something like 60N, which is like 13lbs, I believe. I know torque (in physics) is related to the length of the arm crossed with the tension force. is this true in torque of a motor? Or is it more just have to do with force? Does anyone know where I can get a motor with these characteristics? -low rpm -relatively small -high torque -idealy low power, but can work with higher power -hopefully cheap -motor able to rotate both ways -motor able to lock in place Thanks in advanced for any help!