Yes...go back and raise the left servo link 1 turn and lower the right 1 turn...that should take care of left drift. As far as glue for the tail motor housing...Keep in mind you might have to replace the tail boom so the loctite CA for plastic is fine. Mine comes loose once in a while so I just put a drop on it and let it set for a couple minutes and ready to go. If I need to change the tail boom...it comes right off. Veritical hopping...look for glitching of the pitch servo (right rear). Two things cause hopping...pitch servo or the main motor is failing. Servo is #1 suspect, main motor is #2. My rule is that the 4-1 or 3-1 seldom go bad unless they've been in a pretty wicked crash (power surge). Now...git-er-done.
ORIGINAL: wick246
Great vids Rick - and the cp's look good in the picture. I didn't like the look so much of the super skids a couple of weeks ago but they are really starting to grow on me.
I started over with airframe #1 pretty much from the beginning. Replaced the motor (to trouble shoot my vertical hopping issue), checked the swashplate, balanced the blades, set the zero angle per bladecp.com, and set the blade tracking. I did some test hovering in the living room and it does run a little better. Still getting some vertical hopping. I guess I need to replace servo's individually until it goes away. That or the 4 in 1, not sure which would be most likely yet.
A couple of questions...
After the initial flat setting of the swashplate do you go back later and adjust the servo arms for things like left drift?
What is a good glue for the tail motor housing? I've tried some kind of loc-tite for plastic, it was too soft like rtv and bumping the tail stand make it fail. Tonight I tried a hot glue gun and got the same results. Of course I could epoxy or super glue it but I'm trying to keep these removable so I don't have to buy a whole frame assembly every time there is a boom problem. As I type this I realize that what I really want is a carbon fiber fin - that would take all of the twisting loads off of the rotor housing and I would just have to worry about the boom to frame joint.
For twenty or thirty seconds of hover tonight I actually felt in control. Then some vertical twitching, some yawing and drifting that don't seem to stop despite what I do. I just have a hard time deciding what problems are noob induced (me) and which are mechanical / radio problems.