This web page creates a PDF file containing a design for a vertical "hours to sunset" solar decliner sundial. Two main configurations are possible:
The dial is assumed to be constructed from three uniform layers of transparent material (typically glass, air, glass). If fewer layers are used in your design, specify 0 for the thickness of the unwanted layers and 1 for their Refractive Index. For a non-refraction dial consisting of a simple peg gnomon in front of a dial face, specify a one-layer dial with your gnomon length as the layer thickness, use a Refractive Index of 1, and turn off the mirror setting.
Mesh area is ? mm wide by ? mm high.
For an excellent source of general information on sundials, visit The North American Sundial Society.