Getting Real - 2
season, I noticed the "Holiday Projectors" designed to project
Rudolph on your garage door. These units projected an image
that was bright enough and did not require a cooling fan. It was
a simple matter to insert a portion of a 35mm slide with the
image of the moon into the projector where the holiday image
would normally be placed. I used black masking tape to mask
out the entire slide except for the image of the moon. The pro-
jector was mounted on the ceiling and produced a very believ-
able image of the moon
over downtown Kansas
City.
Okay, it's true; I can
never leave well enough
alone! Should I aim the
moon low on the hori-
zon, high, or somewhere
in between? Then I
thought, why should I
be forced to make that
choice? Why shouldn't
the moon move up and
down in the sky so that's
it’s not always in the
same place?
To make a long story
short, I accomplished
this with a slow speed
display motor and three
stage gear reduction
drive. A bolt protruding
from the large gear runs
2: The moon in its mid position.
2
3: The projector for the moon.
3
MRH-Aug 2013
