import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-7,0))
w1=cq.Workplane('ZX',origin=(0,-16,0))
r=w0.workplane(offset=20/2).moveTo(22.5,0.5).box(55,17,20).union(w1.workplane(offset=33/2).moveTo(-49.5,-8).box(1,2,33))