Cubic Dial

cubic dial
Figure 55: Cubic dial

The typical cubic dial carries five standard sundials - a horizontal dial on the upper face, and vertical direct north, south, east and west dials on the side faces. A small compass in the base is used for orientation.

The five dials of the cubic dial are all drawn for the same latitude, but the instrument is made usable in all latitudes by placing a joint in the pedestal on which the cube stands. If we want to use the dial in some latitude other than that for which it was designed to be used, we only have to tilt the cube until all the gnomons point toward the NCP.