import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-54))
w1=cq.Workplane('YZ',origin=(-23,0,0))
r=w0.sketch().segment((-9,-34),(44,-34)).arc((92,-51),(73,-3)).segment((73,7)).segment((-9,7)).close().assemble().finalize().extrude(64).union(w0.sketch().segment((-80,23),(-65,23)).arc((-55,7),(-37,2)).segment((-37,18)).segment((-15,18)).segment((-15,12)).arc((-12,17),(-10,23)).segment((5,23)).segment((5,39)).segment((-10,39)).arc((-37,60),(-65,39)).segment((-80,39)).close().assemble().finalize().extrude(67)).union(w1.workplane(offset=-77/2).moveTo(22,17.5).box(68,73,77))