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Discussion Starter #1
I have an older lathe with a pulley system and extrnal motor. I have the capability of going up to over 5000 rpm. Is there any reason to go that high?
 

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Lathe speed

My NOVA only goes up to about 3200 but I have never had it up near there and don't think I would wanna be standin there with something spinnin at 5 g's,imagine something blowing apart or coming loose at that speed,it would be like a hand grenade exploding BOOM. :no:
 

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I will spin some smaller diameter, balanced pieces fast some times, but I don't normally go over 3000. 5K sounds pretty fast to me.
Mike Hawkins;)
 

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Discussion Starter #6
Thanks guys! It is not an original motor and running through the math with the pulleys gets me upwards of 5K. Probably an over sized motor, even though I can get down to 500. But I don't want any grenades going off in my garage so I'll steer clear of that last pulley.
 

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Lathe speed

You could probably slow it down by changing pulleys and get the slowest speed down to around 200.Depending on what you turn that is better to have than 4 or 5 g's especially when your roughen out an out of round bowl,or even sanding, the slow speed is much better,I believe
Ken
 
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