import cadquery as cq
w0=cq.Workplane('YZ',origin=(-30,0,0))
w1=cq.Workplane('ZX',origin=(0,12,0))
r=w0.workplane(offset=-35/2).moveTo(7,30.5).box(4,73,35).union(w0.sketch().push([(-69,50)]).circle(24).push([(-78,48)]).circle(4,mode='s').reset().face(w0.sketch().segment((8,-26),(12,-100)).segment((93,-95)).segment((88,-21)).segment((46,-24)).arc((29,-8),(14,-26)).close().assemble()).push([(28,37)]).circle(12).finalize().extrude(94)).union(w1.sketch().segment((-7,-64),(69,-64)).segment((69,-25)).arc((63,59),(36,-21)).segment((-7,-21)).close().assemble().push([(83,11)]).circle(6,mode='s').finalize().extrude(68))