Finally got most of the remaining parts together and did a little live test.
https://youtu.be/fDxUEo0jybw
The slowest speed is about 800 SFPM and the fastest is 5100 SFPM. I have not tested it out under load yet but the motor is 1.5HP so I should have ample power for my needs.
Also looking at the AC control VFD motors and drives they seem relatively expensive. The treadmill motor is permanent DC magnet rated at 5700 rpm. The speed controller has some sort of slow start circuitry built in. It’s already wired for a safety stop as most treadmills have some sort of key pull.
The motor is also has a thermal shutoff.
What is interesting that I’ve seen tons of old working treadmills at yard sales and on Craig’s list for $200 or less and even $25. Those motors and drive circuits can be very useful for DIY projects.
https://youtu.be/fDxUEo0jybw
The slowest speed is about 800 SFPM and the fastest is 5100 SFPM. I have not tested it out under load yet but the motor is 1.5HP so I should have ample power for my needs.
Also looking at the AC control VFD motors and drives they seem relatively expensive. The treadmill motor is permanent DC magnet rated at 5700 rpm. The speed controller has some sort of slow start circuitry built in. It’s already wired for a safety stop as most treadmills have some sort of key pull.
The motor is also has a thermal shutoff.
What is interesting that I’ve seen tons of old working treadmills at yard sales and on Craig’s list for $200 or less and even $25. Those motors and drive circuits can be very useful for DIY projects.