Rubbers do not colllide sometimes

[Cupiii]

After some playtest, I think that Rubbers do not collide either at very tight position with many splinepoints or at plinepoint 0 and its neighbor.

Sometimes the ball flies through.

While working on the metalwireguides I saw the meshes twisting somehow.

With the MWG-code (and some intelligent copy and paste) it should be fairly easy to mitigate or fix the problem, if I'm correct, that the twisting meshes are the culprit here.

[Cupiii]

After Commits on 13.th Mar, the problem got better, but is not yet fixed fully. Either we have to set some walls behind the rubbers or add an option to do that while creating the rubber.