import cadquery as cq
w0=cq.Workplane('YZ',origin=(-14,0,0))
r=w0.sketch().arc((8,10),(21,-25),(48,0)).segment((50,0)).segment((50,29)).segment((42,29)).arc((29,33),(17,29)).segment((8,29)).close().assemble().push([(26,-3)]).circle(1,mode='s').finalize().extrude(-10).union(w0.workplane(offset=38/2).moveTo(-21.5,-30).box(57,6,38))