import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,18,0))
r=w0.sketch().arc((-30,-1),(-50,-11),(-28,-14)).segment((-23,-14)).segment((-23,-1)).close().assemble().reset().face(w0.sketch().segment((-2,-1),(0,-2)).arc((4,-3),(8,-2)).segment((10,-3)).segment((10,-1)).arc((17,8),(13,19)).segment((13,20)).segment((10,20)).arc((6,21),(3,21)).segment((0,21)).segment((0,20)).arc((-7,11),(-2,0)).close().assemble()).push([(5,9)]).circle(8,mode='s').finalize().extrude(-37).union(w0.sketch().segment((18,-14),(30,-14)).arc((35,-15),(40,-14)).segment((50,-14)).segment((50,-4)).segment((43,-4)).arc((35,2),(27,-4)).segment((18,-4)).close().assemble().push([(35,-6.5)]).rect(16,3,mode='s').finalize().extrude(-2))