What I understand is that he wants to have a mathematical way to see if a part intersects another.
i.e. if a pin is in a pinhole of a beam.
and also the reverse case, if a part is not connected to anything, i.e. floating in the air.
i.e. if a pin is in a pinhole of a beam.
and also the reverse case, if a part is not connected to anything, i.e. floating in the air.