i was wondering you guys can help me. i am designing a pressure vessel with a 72 in dia asme flanged and dished head. am i am putting a bridge to lay on top of this top head. which is no problem since it will lay flat on the top of it.this head. this plates to is 2 inches thk 22 inches wd and 70 inches long.problem i have is designing two support plates at at both end of the 22 wd ends.my question is how do i project the contour of this flanged head onto that plane so i can design these plates.or get a interference solid so i can subtract it from theses plates?