rctom
Posts: 5199
Joined: 5/8/2002 From: Flower Mound (near Dallas),
TX, USA Status: online
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quote:
I'm going to repeat something about linkage set ups that I've said a few times before but it's worth saying again. If you intend to gang servos together or opertae mulitple servos on a single surface obtian a volt and amp meter. Hanger 9 sells one for a bit over $20.00. That small investment will get used over and over again every time you set up a plane that uses multiple servos on a surface and it will save your plane, your servos, or both. It will also let you know how much load a single servo is carrying so it's a real cheap investment with an extremely high rate of return. There's no way you can know what your servos are doing without one, and $20.00 to save a plane and servo or two is cheap insurance. Pat's correct about this of course, but I was setting up a wing yesterday and tried a new strategy that also seems to work. First I set up the outher servo the way I wanted it. Then I started working on the inner servo. I got the center points to match, then using the transmitter I moved the aileron to full extent and adjusted the length of the control horn by screwing it up and down on the stud so that the end point matchged in one direction. I then attached the ball link to the arm, loosely. This is the point where you would use the meter if you have one. I did not have one handy, instead I pushed the controls to their end point and checked to see that the loose connection was still loose. I was able to move the ball link up and down on the attaching screw, telling me that the two servos were synchronised as much as they could be. As an insurance step I also now use Hitec 985 servos on ailerons on 35% planes, these are great servos and do not suffer as much as digitals in the case of a slight misalignment. I also plane to try using 4 channels for aileron servos, I'll see if I can make that work on my x9303. TF
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