import cadquery as cq
w0=cq.Workplane('YZ',origin=(18,0,0))
w1=cq.Workplane('YZ',origin=(-4,0,0))
r=w0.sketch().segment((-34,-21),(-34,-17)).segment((-14,-17)).arc((4,17),(-9,-19)).segment((-9,-29)).segment((-27,-29)).arc((9,-35),(32,-6)).segment((40,-6)).segment((40,8)).segment((32,8)).arc((-18,33),(-34,-21)).assemble().finalize().extrude(-68).union(w0.workplane(offset=-58/2).moveTo(16.5,1).box(31,58,58)).union(w1.sketch().arc((-14,29),(-11,33),(-14,37)).close().assemble().finalize().extrude(54))