Clock & Gear Making References

Quick Links to Relevant Webpages

Gears & Gear Making References

Gear Design Theory

Gear Design Software , Simulation, for CNC, 3D Printing, etc

The following programs make the calculations much easier and most of these can create DXF files for direct import into a CAD or CNC program

Making Gears

Gear Calculators

Next Project: Water Clocks (clepsydra)

(Greek κλέπτειν kleptein, 'to steal'; ὕδωρ hudor, 'water')

Diagram of a fancy clepsydra. Water enters and raises the figure, which points at the current hour for the day. Spillover water operates a series of gears that rotates a cylinder so that hour lengths are appropriate for today's date. The ancient Greeks and Romans had twelve hours from sunrise to sunset; since summer days are longer than winter days, summer hours were longer than winter hours.

http://en.wikipedia.org/wiki/File:Clepsydra-Diagram-Fancy.jpeg

http://en.wikipedia.org/wiki/Water_clock