If your microtonal tunings are equally spaced, then go for EqualDivision. This is not a quantizer, it’s an attenuverter, so if your tuning is e.g. 31-edo, each key on your MIDI keyboard represents one microtone. Of course, when MIDI-data arrive in the Rack, they arrive in semitones (100 cents). In case of converting to 31-edo, my module attenuates the CV-pitch-data, and you get (in case of 31-edo) 38.71 cents per ‘semitone’.
Yes, I like that module, anyhow, my most of my scales are not equally spaced.
Thank You @main.tenant for your answer link, which provides the solution, being:
volts = log((hz/55)/2^.25)/log(2)
hz = 55 * 2^(volts+.25)
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If you go into the module browser and search for ‘micro’, you should get some results. For microtuning, I never used any other modules than mine 
Just a heads up, those formulas assume you are using A440. But you probably already know that.
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Yes, thank you
If you know what pitches you want, you can figure out the interval between them using HOT TUNA’s “freq-to-voltage” output. Here we see that the difference between 200Hz and 225Hz is 0.17v. This is how I figured out all the just-intonated intervals.
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Amazing, thank you!