import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,33,0))
r=w0.workplane(offset=-67/2).moveTo(-13,18).cylinder(67,51).union(w0.sketch().push([(-19,61)]).circle(24).reset().face(w0.sketch().segment((-26,-74),(35,-100)).segment((64,-32)).segment((1,-6)).close().assemble()).push([(19,-53)]).rect(48,26,mode='s').push([(48,51)]).rect(24,98).finalize().extrude(-20))