How do you set the diameter?

[Krissy]

I am trying to find where you can set the approximate diameter of the first gear.
I did run across a pop-up where i can set the diameter, but that was by accident. Where is the setting?

Thanks
K

[ArtF]

Hi K:

  The diameter of a gear is a formula of its MOD and its tooth count. There is a calculator which can determine the center distance between gears which perhaps is where you saw a reference to the gear Diam. Pick the number of teeth you want first..then press the Calculator button on the
round gear design screen. It will then calculate the MOD necessary to make that gear at that size.

Art