How do you reverse the turn of an AC electric motor?

~gd

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I don' t know what you are trying to drive but back on the farm many things were belt driven. To reverse we would simply flip the belt between the drive and the driven pully. Another way to say that is that the belt would come off the top of the drive [motor pulley] down to the bottom of the driven pulley around the driven pulley exiting from the top and back to the driver entering the bottom of the driver. if you trace this out with your finger you will see that the spin is reversed. you can do the same with two gears set side by side the drive gear will produce opposite spin to the driven gear. the right gears require less attention than the belt drive but the belt drive is faster to set up. it can be tough on the belt because of the friction at the cross. another option is an idler pully riding on the outside of the belt. I hope I haven't wasted your time.
 

Joel_BC

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Thanks, ~gd. Yes, I know that system (figure-8 belt drive). Wouldn't work in this case.

What needs driving is one of these:
http://www.leevalley.com/us/wood/page.aspx?c=&p=44884&cat=1,43072
For grinding delicate small parts.

Needs to have the shaft directly connected up. A friend has the set-up, and he is using a 1/3 hp motor of the appropriate size (and of course having the counterclockwise spin).
 

~gd

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Joel_BC said:
Thanks, ~gd. Yes, I know that system (figure-8 belt drive). Wouldn't work in this case.

What needs driving is one of these:
http://www.leevalley.com/us/wood/page.aspx?c=&p=44884&cat=1,43072
For grinding delicate small parts.

Needs to have the shaft directly connected up. A friend has the set-up, and he is using a 1/3 hp motor of the appropriate size (and of course having the counterclockwise spin).
Have you tried your friends rig on the kind of work you want to do? I have the exact same Lee Valley rig as shown but I don remember where I got the used motor. Works well on small grinding jobs. I like Lee Valley tools! Now I knoW why my belt trick won't work for you, Sorry! ~gd
 
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