The FIBIAC — a 3D-Printed Electromechanical Computer
Brietech writes "'Behold the FIBIAC! It's loud! It computes! It uses actual punch cards!' The FIBIAC is a simple, stepper-motor based, (mostly) 3D-printed electromechanical computer. The program is stored on a loop of paper punch-cards, and the machine uses three, 3-digit electromechanical counters for storage (which could be expanded to support more complicated programs) Watch a video of it computing the Fibonacci sequence, or jump on Thingiverse and build your own."
and how many cards that would take.
To be fair, it doesn't actually make use of a CNC mill (and the 3D printer in the video is clearly a Makerbot Thing-o-matic).
Is the computer sufficient to run a 3D printer?