Distance to RPMs

[Timz3082]

I would try just manual data logging (good ol pencil and paper) comparing distance value to RPM. Then put that into a spreadsheet or a math site like Geogebra and fit an equation. Then implement that equation into your program!

[Joshuamunson]

how would I go about doing that if I have a gap in the 2 RPMs
I have a top shooter wheel and a bottom
the top goes at 300 RPMs slower than the bottom
maybe 2 equations?

[Alan Anderson]

It sounds like you're looking for the Interpolate 1D function. It's in the Mathematics > Interpolation & Extrapolation palette. Give it a pair of arrays for the independent and dependent values, and it will find the appropriate output for a given input.