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winch_drives [2018/08/30 16:47] (current) 73.128.99.196 created |
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+ | It is possible to to drive a tiller using a winch drive. I have success with this using a 1 inch pipe mounted to a windshield wiper motor. A line is wrapped around this pipe 5 turns, and connected to the tiller. | ||
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+ | The alignment of the pipe is critical to ensure the line does not walk to the ends. | ||
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+ | The advantages over tillerpilots or linear actuators: | ||
+ | * use windshield wiper motors from cars, available for very cheap. These motors also have two speeds. | ||
+ | * easily adjust the gain by using different size pipe (recommend 1 inch or smaller diameter) | ||
+ | * reuse existing line connections from windvane | ||
+ | * testing shows this is more efficient than using a tillerpilot | ||
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+ | The disadvantages: | ||
+ | * Slack in the lines gives more play in the system | ||
+ | * More work to connect/disconnect lines than lift tillerpilot from pin | ||
+ | * More involved mounting to the boat | ||
+ | * lines across cockpit | ||