Originally Posted by Michael2000
What about a coffee table? Would that be too flimsy?
I'm not a physics guy, but I'll give it a true NERD effort, so I think what we have here is a combination of resonant vibrations and harmonics. Securing the projector should help, but you may find just by varying the type of object it sits on that you have large variations in the amout of vibration, even if one object is not as secure as another.
This is probably becuase there are certain physical characteristics in the transfer of resonant energy when trying to implement vibration dampening. I would say yes, it would help to shelf mount but it depends how secure the object you shelf mount is, and also should depend on the vibration absorption characteristics.
I have seen the Mits vibrate on a shelf mount just a tiny bit, but none from a floor mount. That generally tells us that if you can "stiffen" the projector's position, it's probably going to self-absorb the resonance without the optics vibrating internally. I've seen some devices actually vibrate the optics when mounted too tight and you had to do the opposite (loosen the mount), but with the Mits just make it as tight as possible most likely, so just experiment.