Need instructions on properly installing the servos to the control horns

[nadeema]

Hello all,
I received my speed build kit for the Nutball from flite test (part of the 3-pack swappable set) and I am not understanding the instructions in the build video posted for the nutball about attaching the servos to the control horns on the elevator and rudder. Specifically, how to install the linkage arm (push rod) to attach the control horn to the servo arm. In the speed build video below, this installation is performed between 7:44 and 7:50:
http://www.youtube.com/watch?v=w3__FHKIUvk

This video mentions a "linkage stopper" that to me looks somewhat like one of the larger mounting screws that came with the Turnigy TG9e 9 grams micro servos that were mentioned for this build. I did not realize that these "linkage stoppers" were components that needed to be ordered separately. Also, I could not tell from the video how these linkage stoppers were attached to the push rods in the first place.

Anyway, is there another way for me to attach the push rods to the servos without ordering these "linkage stoppers" since that would eat several more days of waiting to fly this plane?
Thank you.

 

[jweather]

Yes, the linkage stoppers are ordered separately. They're listed under "Other Supplies" at the bottom of the Power Pod Electronics page at http://flitetest.com/articles/swappable-fuselage-speed-build-kit

You can also use a Z-bend on the control horn side, you just have to be careful to get the pushrod length just right so the surface is centered when the servo is centered. Depending on your pushrod material, you may be able to add a "V-bend" in it to be able to adjust the length after installation. Some other alternatives are discussed here: http://www.rcgroups.com/forums/showthread.php?t=20222

 

[makattack]

Actually, the linkage stoppers are included in your speed build kit... there should be two little silver/chromed pieces, or they might be all disassembled / unscrewed.

Take the largest "barrel" piece, which should have one male end, and one female end. Screw the male end into either your servo arms, or your control arms (depending on the model). It should also have a nut that you put on the end to secure it to the servo arm or control horn. I personally use loctite on that to keep it in place, but I think that's optional.

There should be a set screw / small screw that then goes on the female end to secure the control rod once you've inserted it. Don't over-tighten either part. Just enough...

Have fun with the rest of the build and flying it!

 

[jweather]

My bad, as you can see I haven't ordered a speed build kit... yet!

 

[makattack]

Actually... MY bad... I just double checked the flitetest shop... they DO NOT include the linkage stoppers, and their build videos just recommend using them... I got mine because I had been lazy about getting my electronics separately and bought the packages from lazertoys, which does include the linkage stoppers.

So, if you don't have the linkage stoppers, you can either buy them, or just take two pliers and bend the control rods as you need (I prefer a Z type bend) to fit over the servo arm / horn. Of course, you might need to put in a U bend so that you can fine-tune adjust the length/throw.

 

[nadeema]

Thank you. I checked again but there were no such items included in the kit that we received from FT. Perhaps they used to include it but not anymore? I had to order the "Du-Bro 605 E-Z Connectors" from Amazon - based on the feedback on the other forum thread referenced above. I hope these connectors work with the push rod in the FT kit:

http://www.amazon.com/gp/product/B0006O8U0M/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1

 

[makattack]

Yes, I was mistaken the first time around. When I built my first FT plane (FT-22), I ordered the Lazertoyz electronics package for it, and it came with the ezjusters... but, looking at the ones you ordered, they have 1/8" screws. I believe the ones FliteTest uses are a little smaller:
http://shop.flitetest.com/accessories/linkage-stoppers-6-pack/

That's ok. If I remember correctly, I used a 1/16th drill bit to make the whole for these stoppers, so you just might need to make your hole a little bigger in the servo arm (use the fatter part of the arm or a larger arm).

Yes, I just checked, and Lazertoyz specifies the ones for the FT stuff are 1/16th sized:
https://www.lazertoyz.com/EZ-Justers-Nickel-Plated-Brass_p_103.html

 

[Roy Fokker]

Hi guys...my question was how to install the servo-arm to the push-rod using the linkage stoppers, provided in my kit.... After reading this thread i found this video..http://youtu.be/EXxAHQkniTg?list=PLzSGYlSo2-aHh2y5zDqcPSL9AMtABvu99 Thanks Guys