Hi,

Here are a couple of projects that I've recently built. One is
a dc motor direction controller for a sculpture. When the motor
raises a stone to the top, it trips a microswitch, which
reverses the direction of the motor and the stone descends.
When the motor lowers the stone to the bottom, it closes another
microswitch, reverses the direction of the motor again and it
raises the stone. This cycle goes on continuously.

The schematic is at,

http://mypeoplepc.com/members/jon833...mial/id11.html

The other project was a well pump timer. There are two well
pumps that fill a cistern. The circuit toggles between the two
pumps, which stay on and stay off at adjustable times.

Jon