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Rotary / Chain drive motor alternatives
Hi Guys

Another question - has anyone successfully adapted an automotive based motor for a chain drive / sprocket drive autopilot driver?

i.e. i was looking at it, and it seems to me that an automotive door window motor may be a good option, as they are pretty high torque (higher than the wiper motor examples i've seen).

Just wondering if anyone has played with this at all...

They have a stall torque of around 10 NM (half of the T1 Raymarine drive, which is 20 NM), but are a 2x faster (60 RPM vs 33 RPM), so you could adjust with a larger sprocket on the wheel shaft... so it seems to be "in the ballpark"...

Of course the appeal is $20 vs $1500....

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