Calling all electrical experts - DC motor conversion

vendredi 19 décembre 2014

Great day for the Hercus today, not only did I finally get all my imperial gears (big thanks to pipeclay) but I took a gamble on an eBay auction for a treadmill:







Plan for the treadmill was to try my hand at a DC motor conversion. 99c later I was the proud owner of a Avanti 006 Treadmill:







My father in law hand already given me a treadmill motor and this was designed to provide the electrical bits but unfortunately the motor he gave me was 0.5hp AC :(



Shame, because I really needed to replace the old motor on the lathe:







Pulled the Avanti apart this afternoon and was delighted to find this with a fan attached at the end too:







A bit too powerful for my little 9" lathe, but I plan on keeping the flat belt, so that will provide a little insurance against the hp.



I pulled the pwm and tested the motor:







The motor made a horrible noise, which was the reason nobody bid on it, I pulled the motor apart and found something had been through it. There was some damage to some of the inner motor spindle. I filed down some nicks and flattened the brushes and it worked perfectly afterwards. RESULT!





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