Here is the question, I am designing fowler flaps for a scale model airplane I am building. These are a special type of flap actuation which moves out and then down, as on a commerical airliner. I wanted to acturate the flaps via a screw drive from a servo, which I modified for continuous movement. This works perfectly except I need some way to limit the travel in and out of the screw. I was wanting to use micro switches to change the feed back resistor from its present 2.2K to values which would cause the servo to stop at specific positions. The pot that was in my servo was a 5k pot. The problem is I am not sure this is going to work and would like someone to give me some input. Has anyone had this problem before. The solution must be repeatable and be fairly simple.