RCU Forums - View Single Post - AD Diamond build thread
View Single Post
Old 11-13-2013 | 07:38 AM
  #19  
olnico's Avatar
olnico
 
Joined: May 2007
Posts: 4,120
Likes: 0
Received 16 Likes on 10 Posts
From: Houston, Texas.
Default

Setting up the controls on the Diamond is fairly straightforward and just like many other ADjets models.
First identify the different control horns from the CNC carbon fiber plate and detach them.
Then scuff and drill the portion of the horns that goes into the flight control. and drill a few holes.



Install each servo into its respective servo hatch. Use some Sikaflex silicon comound to secure it in place. This is mandatory for the flaps servo as the pusrod force on this one can reach over 50 lbs force.
Place the servo hatch on the respective pocket and drill the 4 fastener holes to 1 mm.
Center the servo arm and install the pushrod in position onto the recommended servo arm hole ( see control calc post above ).



Place the servo/ hatch assembly back into the pocket and secure with the supplied countersink screws.
Place the control horn at the end of the pushrod and verify the CNC routed horn reservation . Make it about 1 mm larger than required to enable a good flowing of the glue. I recommend the use of Hysol E-20HP for this job. It is faster to glue all the horns in position at once.



Once all the horns are glued, you can start working on the aircraft loom.
Here is my usual sequence: make the loom, plug it to the receiver, setup the control throw, then secure the servo and hardware.
The latter includes:
. Putting the retainer tab on all clevises
. Putting thread lock on all push rods.
.Putting a drop of white glue on the thread of the servo spline screw ( I don't use thread lock here as is trend to make plastic arms brittle ).