I have used a few treadmill motors on my boat.
It is a trial and error kind of thing.
I was also using nimh batteries.
I tried switching in for speeds 12,24,36,48. But the NIMH put out too many amps and arced when switched and fried the brushes or something in the motor.
I also tried a relatively small 50amp 48 |Volt DC controller.
This worked well, but had limited speed 3.5 KM/h .
I also found if |I pushed it much past 15 amps continuous, the motor heated up a lot.
I haven't found any controller at low amps at the higher voltages.
I feel if you could find a controller at 120V DC and 15 amps max, that these would be a good motor.
You can usually get them for free(people throw out their treadmills Craigslist free)
It would be easy to have a spare onboard as well(no cost)
If you have experience in building a motor controller, \I would be interested in helping design and test one for these motors.
Also there is a wide range of quality in treadmill motor. Some actually come rated at 3hp continuous.
Mark
From: "BRUCE NOBLE brucenoble@bellsouth.net [electricboats]" <electricboats@yahoogroups.com>
To: electricboats@yahoogroups.com
Sent: Saturday, January 13, 2018 10:28 AM
Subject: [Electric Boats] Treadmill motors
Hey there group thanks for the join I am building a solar boat from a ship lifeboat (a rowboat style) non motorized I put a propshaft in it and I am looking at different motors Currently I am looking at these treadmill motors found some freebies and working 2 of them are 2.5 hp 120v max 18 amp thinking on doing a simple pulley to shaft Small on motor slightly larger on shaft Just wondering if anyone has any thing to say about these motors Good or not Bruce
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Posted by: Mark F <mark.internet@yahoo.ca>
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