3-Digit body for the 7 segment display.
Single-digit version located here: https://www.printables.com/model/860058-7-segment-mechanical-counter-version-21-ratchet-wi/comments
Two options:
Uses all the same internal components as the single-digit version.
2-Digit body version found here:
https://www.printables.com/model/869296-7-segment-2-digit-mechanical-counter-version-21-ra
The author marked this model as their own original creation.