Last edited by Al8236; 01-04-2018 at 05:12 PM. Reason: Forgot link
From the time you're born till' you ride in a hearse, there's nothing so bad it couldn't be worse!
I removed the fly wheel just to be on the safe side and the motor works fine I have these motor and controllers on my lathe, mill and my drill press.
You can buy these components on ebay for cheep 50 for the motor and 50 for the controller. my controller does not have that large transformer on it.
Thanks to AL8236 for a great video...:O)
These are DC brush commutated motors which prefer feeding on smooth DC rather than out of phase rectified and chopped AC. At any given speed the commutator segments pass under a brush at a certain frequency which mostly will be out of phase with the supply frequency. The choke helps by evening out the current pulses. These motors run much smoother and quieter with the choke in series.
The above applies to TRIAC controllers which are the only type that I have seen in treadmills, but if some controllers are based on a PWM system then there would be less need for a large choke due to the much higher frequency of the pulses. 1000s of times higher.
For my first use of the treadmill motors I used the treadmill controller but they have delays and other safety features built-in which make those controllers less suitable for controlling machine tools so I make my own. Maybe this weekend I'll try and finish that post describing motor control.
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