Comment Re:Link to actual animation (Score 2, Informative) 71
The basic mechanism shown is basically the same.
What I don't like about this idea is that the thrust seems to be carried by the actuators holding their position. Come to think of it, they're using 3 actuators to accomplish 2 degree of freedom motion. Great. Armadillo's gimbal doesn't have these problems, but it does have a very limited range of motion in comparison.
It's not difficult (I just did it) to imagine a gimbal with the same or better range of motion, loads not significanlty carried by motors, no hoses (rotary seals), and only two actuators. The weakness in my idea is the need for a set of somewhat large diameter bearings. It's just a trunnion on a swivel base.
What problem is this gimbal supposed to solve in addition to the large range of motion in a space-rated package?
What I don't like about this idea is that the thrust seems to be carried by the actuators holding their position. Come to think of it, they're using 3 actuators to accomplish 2 degree of freedom motion. Great. Armadillo's gimbal doesn't have these problems, but it does have a very limited range of motion in comparison.
It's not difficult (I just did it) to imagine a gimbal with the same or better range of motion, loads not significanlty carried by motors, no hoses (rotary seals), and only two actuators. The weakness in my idea is the need for a set of somewhat large diameter bearings. It's just a trunnion on a swivel base.
What problem is this gimbal supposed to solve in addition to the large range of motion in a space-rated package?
