import cadquery as cq
w0=cq.Workplane('YZ',origin=(-51,0,0))
r=w0.sketch().segment((-76,-14),(96,-20)).segment((100,82)).segment((-72,89)).close().assemble().push([(32,-70)]).circle(19).circle(12,mode='s').finalize().extrude(50).union(w0.workplane(offset=102/2).moveTo(-30.5,28).box(139,52,102))