RE: Balsa USA Super Cub Build
Spent some time working on the avionics package, installed the rudder pull-pull system and elevator servo and linkage. The parts supplied with the kit for the rudder pull-pull looks like a pile of scrap tubing, however after fitting everything together it works well. I did add several small servo screws to the spruce blocking just to make sure a glue joint failure doesn't cause any problems in the future. The rudder servo, battery, radio, voltage regulator and servo buss will all be mounted on the tray installed with Velcro and foam rubber isolation.
The cables on the rudder get soldered with a brass sleeves after covering and paint is complete. In the photo I have the calbles held in place with heat shrink tubing just to fit everything up.
For the bellcrank end the instructions had you bend the cable over itself and solder into a brass threaded connector, I either lost them (very possible) or they were not in the parts bag. I made my own using a 4-40 Dubro rod ends. The clearance hole on the rod end is drilled to 1/8", 1/8" brass tubing is tapped on the ID to 4-40 and cut just long enough to protect the cable when screwed onto the 1/4" 4-40 screw. A loop is fashioned on the end with a soldered brass sleeve.