import cadquery as cq
w0=cq.Workplane('YZ',origin=(-31,0,0))
r=w0.workplane(offset=15/2).moveTo(-46.5,-25.5).box(7,13,15).union(w0.sketch().segment((-14,12),(-10,12)).segment((-10,-6)).segment((16,-6)).segment((15,-4)).segment((15,-2)).segment((9,14)).segment((15,16)).segment((15,17)).segment((16,17)).segment((18,17)).segment((28,17)).segment((28,-4)).segment((27,-4)).segment((27,-6)).segment((50,-6)).segment((50,32)).segment((-10,32)).segment((-10,14)).segment((-14,13)).close().assemble().finalize().extrude(62))