This file is helpful when reading Illustrating Times Shadow because it allows a dial to be rapidly made and then manipulated to see how orientation affects the shadows. This file has dials built for for latitude 32 (latitudes like Phoenix, Los Angeles, etc), as well as latitude 51 (latitudes such as southern England), and the notes show how to move the equinox line, the dial center, and thus the hour lines. This is more for interest than a serious dial, however it is most instructive, and adds another facet to gnomonics.
The spreadsheet illustratingShadows.xls has a simple method of determining hour line angles for any latitude, this works in Excel as well as in Open Office (Free) and Kingsoft (Free).
These dials are discussed in ILLUSTRATING TIMES SHADOW
As with most files here, this is in Acrobat PDF format, and if you do not have the acrobat reader, it can be downloaded free. There is a link on the main web page.
You may consider the FREE SIMPLE SHADOWS which talks only of horizontal sundials, in a "do it first then fix it next" step by step process, as well as discussing what happens and why it works and then stepping you through the process. Tables are provided. Simple Shadows is a free sample of the big book "Illustrating Time's Shadow"
This is a PDF file that has a horizontal dial designed for latitude 32 (Los Angeles, Phoenix, etc) and latitude 51 also (southern England for example). What makes it different is that it is a paper cutout and popup dial!
Also, this file has a pop up dual dial, with both a horizontal and a vertical dial.