Hi Karsten,

re:
> but it seems that here is a problem - orientlinetoline generates weired results (tested with MoI V3) when the
> target has the same orientation as the start orientation especially in the main directions. After the factory is
> initialised and get other inputs (not in the main dirs) everything works fine as espected. Maybe Michael have a look.

It looks like a bug in orient line to line, part of how it works is it takes the cross product between the 2 directions to make a vector to rotate around but it is not handling the case well when the 2 directions are parallel when the cross product is undefined. I'll investigate to see if I can fix up that case.

- Michael