Algodoo

This is the statement that prompted this scene:

"The idea of testing the work-piece in two V-blocks is that when an elliptically shaped part is rotated on a V-block of angle 60°, no change in reading is indicated, whereas if the same part is rotated on a 90° angle Vee-block, two maximum and two minimum readings are indicated on the indicator."

I modeled an ellipse in a 60° V in Algodoo and noticed that the ellipse high point changed slightly. I then made a shape, using the method in this scene, to make a shape that had a constant high point when rotated in a 60° V.

The shape in this scene that looks like an ellipse, is not an ellipse. The shape in this scene that looks like a Reuleaux triangle, is not a Reuleaux triangle.