2021-01-09, 03:23 AM
If you intend to use this motor you will have to gear it down to spin the wheel. The windshield wiper motors typically use a 4:1 or 6:1 reduction to the wheel, but the wiper motor also has an internal worm gear of 30:1 or 50:1 ratio. This way it takes 4-6 seconds to rotate the wheel one full turn. It also depends on your wheel how much force it needs.
So this motor you have found, I would try to determine the rpm so you can know the reduction needed and figure out how you are going to achieve a 10-20 rpm high torque output from it. It may require 2 or 3 stages of belts, chain or gears. In the meantime you could measure the current draw without any load using an ammeter. You really needed to take this measurement spinning the wheel, but if the unloaded current is only 1 amp or less, then the regular controller can handle it if you gear it down sufficiently, but you may have slow reaction times, it's really difficult to say without knowing the rudder shape, and it will depend on conditions, most difficult is high winds. If unloaded it's less than 2 amps, it's probably ok, more than 2 amps and I would not recommend the regular controller. Again, you should ideally make the measurements while it's driving the wheel, and for this, if it's below 5 amps (at dock) it should be ok.
Otherwise, high power controller... I need to do more tests like shorting rudder feedback out and driving 30 amps for a while to see what happens... it has 4x the current ability of the regular controller and also supports 12 or 24 volts.
So this motor you have found, I would try to determine the rpm so you can know the reduction needed and figure out how you are going to achieve a 10-20 rpm high torque output from it. It may require 2 or 3 stages of belts, chain or gears. In the meantime you could measure the current draw without any load using an ammeter. You really needed to take this measurement spinning the wheel, but if the unloaded current is only 1 amp or less, then the regular controller can handle it if you gear it down sufficiently, but you may have slow reaction times, it's really difficult to say without knowing the rudder shape, and it will depend on conditions, most difficult is high winds. If unloaded it's less than 2 amps, it's probably ok, more than 2 amps and I would not recommend the regular controller. Again, you should ideally make the measurements while it's driving the wheel, and for this, if it's below 5 amps (at dock) it should be ok.
Otherwise, high power controller... I need to do more tests like shorting rudder feedback out and driving 30 amps for a while to see what happens... it has 4x the current ability of the regular controller and also supports 12 or 24 volts.