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Hi Willie,The last photo - The VFD unit it is displaying 52.9 Hz – so what, does that tell me? What is it for?DaveH
a "tachulator" from LMS, which displays spindle RPM and SFM readouts. I made an encoder wheel
I just think a % "speed" output would seem a little more sensible. Than, what's the motor speed DaveH, " No idea but the frequency is 32.7 hz" I suppose if one is good at metal arithmetic then it's fine.
Dave,On my lathe I use a 10 turn potentiometer with a 15-turn dial which starts at 2 and goes up to 12 Phil.