Design your own products with Ponoko

Callipers for finding the Golden Ratio.

The Golden Mean – one of the primary magic numbers.

Its name is Phi
Its number is 1.61803399
Its symbol is Φ

The Golden Mean is the link between the nautilis shell, the sunflower and the pentagram. Phi is the root-note of the harmony that holds the universe together,

The root-note of the harmony that connects the iPhone to the Acropolis.

More information here http://www.goldenmeancalipers.com/

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These calipers are not mass-produced.

They’re lovingly hand-crafted by me… in my garage hammering the little brass rivets into place with a proper hammer, just like the proper Ancient Greeks used to do, but without the garage.

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There are three sizes, they are

1) small : 114 mm (measures 25 mm to 190 mm) : $35.00

2) medium : 180 mm (measures 35 mm to 320 mm) : $65.00

3) huge : 40 mm (measures 80 mm to 750 mm) : $75.00

I can make other sizes if requested.