This is a solution if you want to mont a plank (in my case a picture) of some sort with a thickness of 6mm to a Wall.

I designed it for a picture printed on 6mm foam wich didn't come with a mountig system.

It uses a pully system witch tightens with the wight of the plank itself. I used only one rope, of 2mm. The holes for the rope are 4mm in diameter to fead it threw easaly.