How to turn a Tetradero or another polyhedron changing vertex - based ?
I'm trying to apply a spin, the tetrahedron, so that its apex and the base, exchange position, as shown in gif, attached.
I turn the tetrahedron in the XY plane, but not in the XZ plane or YZ plane.
The Rotate command [<Object>, <Angle> <Axis of Rotation>] gives error when I write:
Rotate [a, t, Z] (a = tetrahedron t = angle, Z = Z axis), what am I doing wrong?
Thank you very much! Marcelo.