import cadquery as cq
w0=cq.Workplane('YZ',origin=(-10,0,0))
w1=cq.Workplane('ZX',origin=(0,3,0))
r=w0.sketch().segment((-50,10),(-35,10)).segment((-35,3)).segment((-31,3)).arc((3,3),(-13,33)).segment((-13,34)).segment((-50,34)).close().assemble().reset().face(w0.sketch().segment((37,15),(40,5)).segment((50,8)).segment((47,18)).arc((43,14),(37,15)).assemble()).finalize().extrude(39).union(w1.sketch().segment((-34,-28),(-33,-28)).segment((-33,-29)).segment((-19,-29)).segment((-19,-28)).segment((-18,-28)).segment((-18,-1)).segment((-19,-1)).segment((-19,0)).segment((-33,0)).segment((-33,-1)).segment((-34,-1)).close().assemble().push([(-26,-14)]).circle(6,mode='s').finalize().extrude(32))