import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-50))
w1=cq.Workplane('ZX',origin=(0,19,0))
r=w0.workplane(offset=72/2).moveTo(-27,-9).box(12,46,72).union(w1.workplane(offset=13/2).moveTo(47.5,24).box(5,18,13))