Kia Ora! Cirkut Gears
The default measurements are off Clayton's no.8 outfit

Input Data
Subject distance measured from: focal plane   rear nodal point
Units: millimeters   inches
Actual focal length of lens:
Large gear radius:
Diameter of film drum with average amount of film:
Perpendicular distance from center of small gear to the lens axis:
Perpendicular distance from center of small gear to the film plane: 
(negative if film plane is behind gear)  
Slit width:
Gear pitch (per inch):
Number of rows in output table:
 

Kia Ora! Cirkut Gears by Bruce Christie

This script is based on the original BASIC program by Bob Lang.