snuffy
Cave Dweller
Member since May 2009
Posts: 4,319
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Post by snuffy on Aug 3, 2009 18:50:55 GMT -5
In a previous post on the low $$$ flat lap thread,carloscinco mentioned a treadmill motor mounted vertically made into a flat lap. I put a wanted on craigs list and got a good treadmill for 20 bucks. Got it home and the wife and daughter took it away from me. I figure in about 2 weeks Ill get it back and take the motor out. I need ideas on how to make a wet flat lap out of it. Any information you all can give me would be greatly appreciated.
snuffy
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Aug 3, 2009 20:58:10 GMT -5
Hey snuffy, just browse this section. A few pages back there's at least 2 home made laps. I know mudshark made one, and I forget the other member who made the other. Nice score on the tread mill. Since your wife and daughter stole it, you'll have time to collect all the parts needed . Nate
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Post by johnjsgems on Aug 3, 2009 22:49:53 GMT -5
That's too funny "in two weeks...". When I saw the treadmill motor post my first reaction was the motors will be new or barely used. Nothing like good intentions.
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drjo
fully equipped rock polisher
Honduran Opal & DIY Nut
Member since May 2008
Posts: 1,581
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Post by drjo on Aug 3, 2009 22:59:18 GMT -5
Congrats!
Is it a closed frame motor? If not, shield it from water but allow for good air circulation, most tread mill motors have a fan mounted either as part of the pulley or on the opposite end of the motor for cooling. DO NOT REMOVE THIS FAN, without making some other provisions for cooling
One type of shaft seal is a slinger... Two "O" rings and a 3" fender washer or anythong that resembles it.
Place a tight fitting "O" ring on the motor's shaft and slide it close to the bearing housing, then place the washer on the shaft next to it, now add the other "O" ring to the shaft and move it up tight against the washer. This will prevent water from creeping up the shaft and into the motor.
You'll also need a shaft adapter so you can the disk or plate.
When you go to disassemble the unit, document the wiring with drawings and pix.
If your handy, there should be enough extra pieces to for a good start on a tumbler too ;D.
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NDK
Cave Dweller
Member since January 2009
Posts: 9,440
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Post by NDK on Aug 4, 2009 19:23:57 GMT -5
Snuffy, be sure to post lots of pictures. It sounds like an interesting build. I'll be hopefully starting my own soon.
Drjo, thanks for explaining how to make a slinger. I understood what it did, but was unsure how it was made.
Nate
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