"...its dial is parallel to the plane of the equator and its axis is parallel to the axis of rotation of the earth. It is therefore a kind of flat model of the terrestrial globe."
Secanda goes on to explain that a equatorial sundial is universal as it will work anywhere on the planet with no other modification than adjustments to the orientation and inclination of the disc. The printable PDF template for the model along with instructions in English and French may be downloaded here.
Other Astronomy Related Paper Models:
Polyhedron SkyglobePlanets of the Solar System
Mars Topographic Globe
Printable Sundial Collection