import cadquery as cq
w0=cq.Workplane('YZ',origin=(-27,0,0))
r=w0.sketch().segment((-47,3),(-46,2)).segment((-34,5)).segment((-34,-1)).segment((6,-1)).segment((6,17)).segment((18,21)).segment((18,22)).segment((6,18)).segment((6,50)).segment((-34,50)).segment((-34,6)).close().assemble().finalize().extrude(13).union(w0.sketch().push([(10,-46)]).rect(74,8).push([(6.5,-44.5)]).rect(5,3,mode='s').finalize().extrude(55))