import cadquery as cq
w0=cq.Workplane('YZ',origin=(50,0,0))
w1=cq.Workplane('ZX',origin=(0,-8,0))
r=w0.workplane(offset=-33/2).moveTo(31,11.5).box(12,47,33).union(w1.workplane(offset=-29/2).moveTo(-1,-16).cylinder(29,34))