Image:Enigma rotor exploded view.png

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Exploded view of an Enigma machine rotor. Created by Wapcaplet in Blender.

Labeled components are as follows:

Notched ring, used to "carry" the rotation of one rotor to another via a ratchet mechanism
Dot marking the position of the "A" contact, for use by the operator in assembling the rotor
Alphabet "tyre" or ring; some rings had a sequence of numerals instead of letters
Electrical plate contacts
Wire connections joining the plate contacts to the pin contacts
Spring-loaded pin contacts
Spring-loaded ring adjusting lever, used to alter the position of the alphabet ring; a pin on the lever fits into holes in the side of the alphabet ring
Hub, through which fits the central axle
Finger wheel, used to manually set the orientation of the rotor
Ratchet mechanism

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