I want to make a setup that can drive some rotary motion compnents without having to resort to continuous hand cranking, for example a rotary table on the mill or a spindle for cylindrical pin grinding on a surface grinder.
I know that windscreen wiper motors have been used by others for similar jobs and have a few queries. First off is RPM. How fast do they generally spin, do they have an integral reduction gearbox like a planetary system to achieve this, or is it a bolted-on-the-end-job?
Second is torque - what sort of ball park torque do they put out, and is one particular (vehicle) make of motor more suitable than others? For instance I have heard Land Rover wiper motors mentioned in the past, I think AWEM used one to drive the table on a Dronsfield grinder.
Finally comes power supply. My thoughts are that I could run this off a suitable battery charger to get the necessary 12V supply, is this feasible? Thanks