import cadquery as cq
w0=cq.Workplane('YZ',origin=(8,0,0))
r=w0.sketch().segment((-50,21),(-43,4)).segment((-14,15)).segment((-20,32)).close().assemble().reset().face(w0.sketch().segment((-40,-5),(-34,-16)).segment((-14,-6)).segment((-14,-5)).segment((-5,-5)).segment((-5,0)).segment((-17,0)).segment((-20,6)).segment((-31,0)).segment((-34,0)).segment((-34,-2)).close().assemble()).push([(-10,-4)]).circle(1,mode='s').push([(32,-19.5)]).rect(36,25).push([(32,-19)]).circle(9,mode='s').finalize().extrude(-17).union(w0.sketch().segment((-18,-3),(-5,-3)).arc((0,-4),(6,-3)).segment((18,-3)).segment((18,20)).segment((6,20)).arc((0,22),(-5,20)).segment((-18,20)).close().assemble().finalize().extrude(-14))