I am thinking of having a reaction wheel cluster set up in a physics lab for educational purposes. I would like to find out what the available options to me are. Here are some more specifics:
- I see that there is a commercial, educational option for control moment gyroscopes here. However, the reaction wheels I can find online are mostly space-grade, which is over-kill for my purpose (but more importantly these don't come with gyroscope mountings as they are meant to be sent straight into space). On the other hand, there are several DIY reaction wheel projects, such as those built with Lego, but those are too small scale and wouldn't be able to demonstrate 3 DOF attitude control. Is there an intermediary option available between the two?
- How are reaction wheel clusters mounted in a laboratory setting for testing? To simulate attitude control in zero-gravity, I'd imagine that the Center of gravity has to coincide exactly with whatever string is suspending it, which might be mechanically tricky. As such, setups like the Cubli, where there is a constant disturbance torque acting on the setup, would not be ideal (or is this the norm in ground testing of reaction wheels systems?). How is this usually being done? Is there a commercial option out there I can get, instead of having to fabricate gyroscope mountings and the platforms myself? (which I don't know how to)