import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,1,0))
r=w0.sketch().segment((-11,29),(-3,29)).segment((-3,15)).segment((4,15)).segment((4,29)).segment((12,29)).segment((12,36)).segment((4,36)).segment((4,50)).segment((-3,50)).segment((-3,36)).segment((-11,36)).close().assemble().finalize().extrude(-32).union(w0.sketch().segment((-46,-42),(-26,-50)).segment((-12,-15)).segment((-32,-7)).segment((-33,-11)).arc((-24,-16),(-23,-28)).segment((-23,-35)).segment((-35,-35)).segment((-35,-34)).arc((-38,-33),(-41,-31)).close().assemble().finalize().extrude(-27)).union(w0.sketch().push([(-27.5,21)]).rect(15,2).reset().face(w0.sketch().segment((20,-7),(46,-7)).segment((46,10)).segment((41,10)).arc((38,19),(34,10)).segment((20,10)).close().assemble()).finalize().extrude(29))