Rotors

The rotors consist only of a few different parts, but most of these are relatively complicated to manufacture. I started with the large wheels which are spin cast out of Zamak, a special zinc alloy. The small levers which will fix the so called 'Ringstellung' are also spin cast parts.

Schleudergussform für ein Griffrad

Rasthebel für eine Enigma-Walze

 

The small brazen parts are the contact plates. They are quite easy to produce, the challenge is the enormous amount which is needed. A single M4 Enigma machine with all its rotors requires 286 of those. I am very lucky to own such an excellent turret lathe to do that tiring job.

 

A nearly finished rotor: