Well the CPU arm is having some issues.
Where it mounts to the large-scale servo is a bit problematic. The arm has an L bracket on it, which then bolts on to the metal servo horn. The arm has worked well for weeks but since the attach point is one bolt, it was a matter of time before is loosened.
Here's what happens..as the arm got loose, its more difficult for the servo horn to lift it/hold it steady. As a result, this gives the servo feedback and it begins to twitch.
Tonight I removed the cpu arm from the servo horn to draw out some ideas...
I've actually thought of a few ways to re-do this with a linear actuator. That would replace the car power antenna, which is taking up some valuable space.
However with the R2 fund being what it is (Ha, can you say *zero*?), I will have to see what I can do to tweak/repair the existing setup.
Back to work!