Design of an Enigma Machine Rotor using PCB, pogo pins and 3D printed parts

Here are a set of PCB that are accurately wired like the rotors and reflectors of an Enigma Machine. This project was inspired by: https://hackaday.io/project/156935-enigma-machine

This project has a hackaday.io page: https://hackaday.io/project/174242-yet-another-enigma-rotor-using-a-pcb-and-pogo-pins

Rotor dimensions from: http://enigma.hs-weingarten.de/drawings.php

The gerbers are available at:

https://oshpark.com/profiles/ArduinoEnigma/

ETW: https://oshpark.com/shared_projects/dMMJPuiM

Rotor1: https://oshpark.com/shared_projects/NqsFk5hz

Rotor2: https://oshpark.com/shared_projects/HGXvMlR7

Rotor3: https://oshpark.com/shared_projects/IRI0Dprv

Rotor4: https://oshpark.com/shared_projects/RgaVcGqp

UKWB: https://oshpark.com/shared_projects/amMSbbJh

UKWC: https://oshpark.com/shared_projects/8ZqqS0C1

Rotor Wiring: 

(from http://people.physik.hu-berlin.de/~palloks/js/enigma/enigma-u_v25_en.html)

First line: RIGHT SIDE - Bottom Layer

Second line: LEFT SIDE - Top Layer

ETW ABCDEFGHIJKLMNOPQRSTUVWXYZ

        ABCDEFGHIJKLMNOPQRSTUVWXYZ

I       ABCDEFGHIJKLMNOPQRSTUVWXYZ

        EKMFLGDQVZNTOWYHXUSPAIBRCJ

II      ABCDEFGHIJKLMNOPQRSTUVWXYZ

        AJDKSIRUXBLHWTMCQGZNPYFVOE

III     ABCDEFGHIJKLMNOPQRSTUVWXYZ

BDFHJLCPRTXVZNYEIWGAKMUSQO

IV ABCDEFGHIJKLMNOPQRSTUVWXYZ

ESOVPZJAYQUIRHXLNFTGKDCMWB

UKWB    ABCDEFGHIJKLMNOPQRSTUVWXYZ

        YRUHQSLDPXNGOKMIEBFZCWVJAT

UKWC ABCDEFGHIJKLMNOPQRSTUVWXYZ

FVPJIAOYEDRZXWGCTKUQSBNMHL

To use:

The rotor PCB are bolted to a 3D printed part. The order, from left to right is:

PCB, 3D printed Part, Head of Pogo pin.

The PCB markings are meant to be exposed and on the left side of the PCB when bolted to a 3D printed part. 

The ETW takes no pogo pins. The wires from the keyboard are soldered to either the exposed vias or the A1..Z1 contacts on the right side.

The UKW will have its dark side on on the left. The contacts will be on the right and hidden when bolted to a 3D printed part.

To make a machine, the minimum set of parts, from left to right are:

UKW(B or C), Rotor 3, Rotor 2, Rotor 1, ETW.

The wires from the keyboard switches go to the ETW (stationary entry wheel), the signals then go through the three rotors, in and out of the UWK (stationary reflector), back through another parh through the three rotors, then out of the ETW to the lampfield.

For a diagram, see https://www.cryptomuseum.com/crypto/enigma/working.htm