Vintage Inspired: A 3D-Printed, Hand-Cranked Computer

(Popular Science) Electrical engineer Chris Fenton built a throwback computer using modern technology for the hackerspace NYC Resistor “digital archaeology” interactive show last spring. Fenton works with supercomputers all day but wanted to slow things down, so he designed the Turbo Entabulator. The 3D–printed hand-cranked calculator relies on punch cards, string and rubber bands to execute functions. One minute of turning produces part of the Fibonacci sequence, a numerical pattern that appears in nature. The plastic machine may be inefficient, but it’s a computer nonetheless and uses parts analogous to those in modern devices.