Edge 540 Manual - Hangar 9

Section 15: Installing the Control LinkagesParts Needed• Fuselage• Wood pushrod• Heat Shrink tubing• 12'' x 4-40 rod – threaded on one end (2)• 6'' x 4-40 rod – threaded on one end• 4-40 clevis w/clips (3)• 4-40 nuts (3)• 20'' x 2 mm rod - threaded on one end with nylon clevis• .020 music wire 36'' (2)• 2-56 clevis w/clips (4)• 2-56 threaded couplers (4)• 2-56 nuts (4)• Heavy-duty 1 1 /4'' servo arms for 3-D throws (optional)Tools and Adhesives Needed• Hobby knife with #11 blade• Soldering iron• Silver Solder (Staybrite)• Needle nose pliers• 30-minute epoxy• Nylon string• Rubbing alcohol• Paper towels• Mixing stick• Drill• 1/8” drill bitStep 1. The elevator linkage will be the first described. Thecomponents for the elevator control linkage consist of a woodpushrod, three threaded music wire rods, clevis w/clips, and apiece of heat shrink tubing. Since the Edge 540 uses a split (twopiece)elevator, you will construct a pushrod that has twothreaded rods on one to connect to the elevator control hornsand one threaded rod on the other end to connect to the elevatorservo arm.Step 3. Use a 1/8'' drill bit and drill the holes marked on thewood push rod. Round out the holes so the rods will fit flushagainst the wood push rod. A groove can be cut from the holesto the end of the wood push rod to help secure the rods in placewhen applying epoxy.Step 2. Trim 2 1 /2'' off of the wood pushrod before proceedingwith the marking of the wire rod position. Make a mark 1 1 /2'' fromone end, of the wood push rod with a felt-tipped pen or pencil.Make a second mark 2'' from the same end, but on the oppositeside of the wood pushrod. On the other end of the woodpushrod, make a mark 1 1 /2'' from the end, but make it 90 degreesfrom the other two marks. In effect you will have two rods at oneend on opposite sides from each other, and at the other end therod will be on the top/bottom side between the two.Step 4. Fit the two 12'' threaded rods on either side of the woodpushrod along side the holes drilled. Position the rods so thethreaded ends are the same distance from the end of the woodpushrod. Mark the rods at the 1 1 /2'' and 2'' hole positons.34