Originally Posted by ScottJ0007
There are three switches on the rotator gearing. I've labeled them as follows:
"A" = This is the Minimum limit switch. When the motor is going in reverse direction (towards 0 degrees), the motor will automatically stop if this switch is pushed. It will stop regardless of whether or not the controller is at "0".
"B" = This is the Maximum limit switch. When the motor is going in forward direction, the motor will automatically stop if this switch is pushed.
"R" = I call this the reset switch. As nearly as I can tell, this switch only functions when the rotator is being recalibrated to find the 0 degree point. On the remote, you can press a series of buttons that cause the motor to go in reverse direction until it finds 0 degrees. When switch "R" is pressed in combination with switch "A", the motor stops, resets itself to 0 degrees, and then briefly goes forward to release switch "A".
In the following picture, the black gear has a bump on it that will press the button on gear "R" once each complete revolution. The bump on the gear is fairly wide, so the button stays pressed for a good length of time.
The white gear has two bumps on it. One is located on a lower ring and presses the button on switch "A". The other is located on a higher ring and presses the button on switch "B".
In the following pictures, the gears have been removed...
I have removed all of these switches from the rotator housing and place them at the limits of my masking. Switch "A" and "R" are pressed when my masking reaches its fully open position (2.40:1). Switch "B" is pressed when my masking reaches its fully closed position (4:3).
The wiring is exactly the same as what it was in the rotator housing. The only thing I did was extend the length of the wires.
One of the problems with the switches in the rotator housing is that the buttons are very small. To fix this, I went to Radio Shack and picked up some of their switches that have a roller lever attached. The Radio Shack Switches are the EXACT same switch, so I just removed the roller lever from the Radio Shack switches and placed them on the switches that I removed from the rotator.
Here is the RS switch
Slip a small precision screw driver under the clip on the side
Remove the roller lever
The roller lever can now be placed directly into the switches that were taken out of the Aspen Rotator. They fit perfectly.
This is the lower left corner of my masking. I think the pictures tell most of the story...
Let me know if you have questions.