Little headache!

 From:  Frenchy Pilou (PILOU)
7533.5 
Solved!
As I had supposed that was very easy! But some days for find it!!! :)
So no need to code for the moment! ;)
I suppose this construction can be used for some intersections with movement (or code) !
Thx to the helper lines and simple geometry!!!



Thanks the Helpers Lines who give the Snap points during the moving!


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EDITED: 12 Aug 2015 by PILOU