ORIGINAL: bubbagates
Not quite.
Tape the protractor on and have it's center in line with the output shaft, not the arm. Connect everything including the control rod and turn it on. Get the servo arm as close to center as possible but do not worry about where the surface is at this time.
So although Im not concerened with the surface being centered, I should adjust to be close but in the end, I will use the programmer to set the final position correct ? Also this is before any programming is done to the servo and everything on the TX is at zero ?
ORIGINAL: bubbagates
Now move the surface using the radio in both direction and see if the servo arm is moving the exact same number of degrees. Adjust the control horn height and control rod length until it does, again, not worrying about whether the surface is centered or not.
Once you have it moving the same amount of degree's in both directions, then your mechanical geometry is perfect.
At this point, I am measuring the servo arm movement on the protractor..not the actual surface right ?
ORIGINAL: bubbagates
When you are all done, the servo arm most likely will not be exactly perpendicular to the servo case but you will be getting the exact same amount of throw and most important of all the servo takes exactly the same amount of time to get that throw in either direction.
AH HA!! that was the part that was not making sense to me! Im thinking the arm has to be 90 deg to the servo at all times..