R.P.M Lathe meter mod.

[mklotz]

So much TO LEARN! Apparently, I need to add electronics to curriculum. That a speedometer could interpret as FPM is like made to order. I'd recommend posting the setup and formula an individual thread. Sure to be appreciated by many.

I'm assuming "FPM" is a typo and you meant RPM.

Firm proof that one can find the answer to anything on the web. (Well, at least stuff that has an answer. "Meaning of life" and such questions are referred to the religious shamans.)

https://www.instructables.com/id/Tac...ometer-cycloc/