Automating the ghost
The ghost now runs on a loop, like a clothesline,
but running horizontally. He is allowed to freefall
down (which looks better), but then is pushed back up
to the top.
One end of the loop is attached at a second-story dormer,
using a steel bracket that we
welded up and bolted in place. The pulley is some auto
part!
The bottom end of the loop is attached to a wooden fence.
This is the "business end" of the system, with the motor,
the tension controls and the system controls.
This picture shows a regular
pulley wheel attached to a motor, which is bolted to
a custom-made steel bracked, which is bolted to two 2x4's.
This is all suspended by the loop wire, and held down
by the chain loops to the fence. Turnbuckles provide
fine control for the tension.
Here's a picture looking up
to the dormer from the bottom bracket.
The system is controlled with X10 home automation controls.
Let's start with the ghost at the top of the system, positioned
just before the top pulley wheel. When activated by a wireless
remote, the motor pushes the ghost around the top pulley,
where it is allowed to free-fall to the bottom of the system.
A loop of metal wire is used attach the ghost to the line.
When the ghost comes to the bottom, this metal line makes
contact with a sensor (an old reciprical saw blade attached
to an X10 universal module) which sends the X10 command to
turn off the motor. When we're ready, we can turn the motor
on again, which sends the ghost to the top of the system.
An "anti-ghost" (a piece of metal wire firmly attached to the
line 1/2 way around from the real ghost) triggers the
sensor and turns the motor off, leaving the ghost positioned
at the top of the system.
I think it sounds more complicated than it is. Maybe I should
have taken some more pictures!
With this system now automated, anyone can trigger the ghost.
Last year, I had to hide in the dormer and pull the ghost
back up by hand!