I noticed that when I use an Arc-gauge it moves in a circular way. Note that my Arc isn’t a perfect circle and has straight lines and corners.
Is there a way to move the centre of that circle so the arc wil be at the border of it?
Now my arc-gauge looks odd and this could be solved by moving the circle-centre away from the arc.
I gave it a good thought and came up with the idea to create a rectangle with its own centre wich serves as the centre of the arc-gauge. Within this rectangle I placed my design. By moving it arround I found the centre I needed.
I grouped everything and it works fine now.