Build your own!

Antikythera Mechanism

funny GIF

and wooden grandfather CLOCK

Visit the Western Australia Museum exhibit.

The Antikythera Mechanism is a 2200 year Ancient Greek portable planetarium

and is the first known analog computer marking the begining of modern computing.

The front dial displays the zodiac position of the first 5 planets, sun, moon phase and date.

The 67 gears computes addition, subtraction, multiplication, division and

7 harmonic orbit first order Fourier Transforms!

The back dials display the 72 year lunar calendar, Olympic games calendar

and most important predicts a solar or lunar ecliplse.

The mechanism was housed in a wooden box complete with a built in instruction manual.

The mechanism is not operated vertically as illustrated in the videos below.

The mechanism is operated horizontally to minimise gear backlash.

3D computer model based on November 2022 research

The Antikythera PI is a 3.14 scale wood frame replica which has

been hollowed out to highlight the genius of the Ancient Greek design.

Something a bit simpler to practice on first

Email queries to Dr Nicholas Andronis PhD CPEng: