Welcome to the Sundial area:

 

Download the following links to get the Sundials I have and the spreadsheet that calculates the angles necessary for different latitudes.

 

sundial.pdf   = The IfA’s “official” sundial for the open house

 

why doesn’t it match.pdf = Why my watch doesn’t match the sundial by Don Mickey

 

spreadsheet = The windows spreadsheet for calculating the geometry at different latitudes