Plug-in for Rhino that works similar to Motion Simulations in solid works

I have some kitchen islands that are designed to have 1 1/4" stone as tops held up with a metal frame. The original design called for 3/4" square tubing and the mock-up was very wobbly for lack of a better word. The design then changed the 1 1/4" but its still unstable. I have added some additional bracing to the design in hopes that will be sufficient to sturdy them up. I’m waiting on those results from the fabricator now. I’ll gladly share the model if anyone is interested in taking a look…?

Brian

Well the added bracing didn’t work…Anyone got any ideas…? I have attached the latest video showing the wobble. For reference the top is 6’-0" X 3’-0" and it’s 3’-0" tall.