On 2010-07-25, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Ignoramus8473 fired this volley in
:

I actually have a tachometer thingy, if I can find a way
attach it the spindle, I could know the speed more precisely. It
counts rotations.

Three phase spindle, Iggy? Thre's something there to count. Unless you're
overloading it, the motor should not slip.

Three phase spindle, the motor always slips and the pulley ratio is
only guessable.

i