pic: Robot Bumpers

[Matt C]

Originally Posted by MikeDubreuil

In the Scott Hill Image corners A and B are not corners and are in fact "curves" making this configuration LEGAL.

I believe that if it looks like a corner, acts as a corner, and feels like a corner, it's a corner.

If the point of tangency (of the change in direction) can't easily/quickly be identified, it's probably a curve.

I personally think A and B in the picture are to be considered corners, thus not being a legal configuration.
If they had a much broader radius (lets say >8 in.), I'd start to consider them more a curve than a corner.