ORIGINAL: matador_24
If you leave your end points 100,100 and SUBTRIM 0, the movement of the servo should be equal for both sides. What you have to do is to center the pitch in the tail shaft VERY CAREFULLY because it can be tricky to know what the center of the pitch is (that happens to me first) and Yes, what I understand is that if you increase the LIMIT in the gyro, the servo will move more (both sides) if you decrease it, servo will move less (both sides). That is why you have to center the pitch in the tail shaft, that way, you don.t mess with End Points. I do what I read in a forum: "try to do all what you can mechanically". I never mess with the Tx in order to set up my rudder, I just move the servo mount forward of backward along the tail boom (having the rudder servo centered, better to use a round arm with many little holes, easier to center the ball link) until the tail pitch is centered, after that. Move right and left and increase, decrease the LIMIT in the gyro if you need or have too much. Being the tail pitch centered, if there is binding it will probably be in both sides, then you decrease, otherwise, increase if you see that there is a big gap between the pitch and the end of the tail shaft (both sides). Usually there must be a little gap at the end of both sides to avoid binding. As I told you, I might be wrong, but this has worked perfectly for me. After my first crash, I was all confused about end points and subtrims in the rudder. I read about setting it up mechanically and it's what I do, works perfect, I hope you have good luck.
Agreed.
You can also adjust the length of the t/r control rod to achieve the same thing (within limits) that moving the servo mount does (just in case you have a t/r servo mounted up forward in the frame. Changing the length of the t/r control rod while the servo is centered will move the slider's position relative to the servo position. If you are binding on one side, adjust the t/r rod so that you move the slider away from the binding side slightly. Eventually, you'll have the slider centered in it's travel range when the servo is centered.
Also ... Your TX rudder channel end points do NOT set the travel limits of the t/r servo. One must remember, that (in HH), the stick position does NOT tell the servo where to go ... it tells the gyro how fast to YAW. So adjusting your end points in the TX will adjust your max YAW rate. It will not set how far the servo will move ... that's determined by the gyro and that's why there is a Gyro limit.
So if you want a slower YAW rate at full stick deflection reduce your end points ... want a faster YAW rate, increase the end points. This is the reasoning most say to set the end points to 100 and leave it alone (unless you absolutely must change it).