Making dials and knobs...
Dials are easy to make. I use an ordinary pen and pencil to make the
dial 2.25 times the desired size, then shoot it down twice on my
photocopier. The photo reduction also reduces any imperfectons, so the
result looks good. I then mount the dial on a white-painted
Thanks for the information on the digital sun dial.
I first became interested in sun dial in 1959 when I went to the UC
Berkeley campus. There is a large bell tower there, and on the south
side of the tower is a sun dial. On the brass plate below, is a table
of correction factors; when the
