Figure Wheels

A project log for 3D Print Babbage's Difference Engine No.2

A fully functional replica of Charles Babbage's Difference Engine No.2 with 3D printed parts

mechredpandaMechRedPanda 11/26/2023 at 05:570 Comments

Figure Wheels and Sector wheels

The figure wheels are made from 40-teeth gear. Each figure wheel can store one digit (0 to 9). 

The nerigboring figure wheels are connected by a sector wheel, which is a section of a 40-teeth gear.

The combination of figure wheels and sector wheel can perform additions.

I chose the size of figure wheel to be 60mm, so that it is not too small and hard to print, and not too large to fit in my 3D printer.

3D printed figure wheels
Figure wheel numbers
Figure wheel numbers