Clockmaking calculators

Choose a beat rate or effective pendulum length, then search practical integer wheel and pinion counts for a clock train. The results show the closest trains, the beat rate they require, and the timing consequence of the remaining error.

Use a working pendulum and suspension as the reference, then scale its free length, thickness, and total active width for a new effective pendulum length. You can preserve geometric proportions or hold the same axial stress for a known target mass.