Hey welcome back to VBAX P45cal. The major half circle sits mid way on the horizontal axis of the quadrant (since the radius of the quadrant is 6m and the radius of the major half circle HC1 is 3 m there is no other position for it to occupy. The minor half circle (HC2) sits on the Vertical axis but it starts at the top of the leg. So, no the major half circle cannot be bigger than than half the radius of the quadrant.