import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-17))
r=w0.sketch().segment((35,39),(36,35)).arc((45,25),(37,14)).segment((38,11)).segment((49,11)).segment((49,39)).close().assemble().finalize().extrude(14).union(w0.sketch().push([(-39,31)]).rect(20,38).push([(11,-35)]).circle(15).finalize().extrude(30)).union(w0.workplane(offset=35/2).moveTo(-6.5,-13).box(29,28,35))