Years ago I was helping a friend model a cam at the heart of a large piece of metals processing equipment for these guys: https://www.butechbliss.com
It was _almost_ right, but had a negative curvature on one surface. The effect was to lift a multi-ton piece of machinery off the floor – which it was bolted to.
My understanding is that the cam is now used as a coffee table!
Years ago I was helping a friend model a cam at the heart of a large piece of metals processing equipment for these guys: https://www.butechbliss.com
It was _almost_ right, but had a negative curvature on one surface. The effect was to lift a multi-ton piece of machinery off the floor – which it was bolted to.
My understanding is that the cam is now used as a coffee table!