import cadquery as cq
w0=cq.Workplane('YZ',origin=(34,0,0))
r=w0.workplane(offset=-69/2).moveTo(15,-51.5).box(108,95,69).union(w0.sketch().segment((-89,-42),(-83,-42)).segment((-74,-32)).segment((-63,-42)).segment((-32,-42)).segment((-32,34)).segment((-89,34)).close().assemble().finalize().extrude(-58)).union(w0.sketch().segment((-46,-100),(76,-100)).segment((76,-11)).segment((89,-2)).segment((20,100)).segment((-5,83)).segment((-7,81)).segment((50,-2)).segment((-46,-2)).close().assemble().push([(48,-39)]).circle(10,mode='s').finalize().extrude(-55))