Newbie question

Hi Fleau

Is there not a plate on your motor ? If there is, clean it up, and look, it should tell you the RPM Then it is simple multiplying or dividing to get the speeds.

Have fun and take care Leo Van Der Loo

"Dr Fleau" wrote: (clip) I don't think I can trust whatever's marked on

10-12 years old and probably not the original thing. (clip) ^^^^^^^^^^^^^^^^^^ The speed of the motor is not going to change with age. Do you mean you don't think it's the original motor, or that it is not the original nameplate? It's extremely unlikely that someone has replaced the nameplate on a motor with one showing the wrong RPM.

To do a measurement without a tachometer or other instruments, here is how I would proceed: Mount a faceplate with a piece of scrap wood on the spindle. Drive in a few nails, evenly spaced. Hold a card against the nails, and tape record the sound. Take the tape recording over to your piano (you do have a piano, don't you?) and match the pitch. It's all arithmetic from there. I"m sort of half-kidding, but the method WOULD work.

Count the number of windings.

counting poles is good. another approach is to gear it way down - say

100 to 1 or 500 to 1 and then count revolutions for a minute, and then multiply.

or just borrow an RPM meter from some>How can I measure the speed of my lathe without using an expensive imported

Bill

to contact me, do not reply to this message, instead correct this address and use it

will iam_ b_ No ble at msn daught com

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