import cadquery as cq
w0=cq.Workplane('YZ',origin=(26,0,0))
w1=cq.Workplane('YZ',origin=(29,0,0))
r=w0.sketch().push([(-27,-16)]).rect(46,56).circle(14,mode='s').finalize().extrude(-55).union(w1.workplane(offset=-7/2).moveTo(42,36).cylinder(7,8))