Re: Wheel Speed and scratches
It must only be on certain days of the week that slower speeds do a better job. Sunday ain't one of 'em. I'm back turning WFO with a loose/white combo and it's lookin' pretty good to me. Ok so maybe it's not the actual day of the week. But I'm pretty sure it's got somethin' to do with the weather. It's cool and damp this morning. Everything seems to work different on days like today. Unfortunately there hasn't been many of them lately.
I'm almost certain you have to get a certain motor to use a rheostat, but I could be wrong. A guy at work was trying to make his kid a pitching machine using a rheostat to contorl the motor and he was having trouble finding a motor that worked. He ended up using a motor from a treadmill and I believe it was a 3 phase with an inverter. If you can find a DC motor cheap, I've got a speed controller you might be interested in. Line voltage is either 115 or 230, I'd have to get the output info for you. Up side: lots o' torque. Down side: low RPM's. I guess you could always use pulley's to get what you wanted. Here's what I did. A fella at work got me 3 hp drive from our plant that was shut down. Found a 2 hp motor. Had another fella at our machine shop make a shaft for me. Got a couple of bearings, some scrap metal and did a little fabricatin'. If you'd like to know more about using an ac drive let me know and I'll tell you all I can. They're pretty cheap these days, especially those that are obsolete. Hope this helps. Later on!
Steve
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