import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,42,0))
w1=cq.Workplane('YZ',origin=(56,0,0))
r=w0.workplane(offset=-110/2).moveTo(42,-47.5).box(40,105,110).union(w0.workplane(offset=15/2).moveTo(-48,57.5).box(28,85,15)).union(w1.workplane(offset=-5/2).moveTo(59,-48).cylinder(5,8))