import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-16,0))
r=w0.sketch().segment((-14,-48),(36,-50)).segment((38,-10)).segment((15,-9)).arc((1,-13),(-13,-11)).close().assemble().finalize().extrude(4).union(w0.sketch().segment((-38,34),(-31,19)).segment((3,35)).segment((-5,50)).close().assemble().finalize().extrude(32))