import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,46))
r=w0.workplane(offset=-93/2).moveTo(-82,73.5).box(14,53,93).union(w0.sketch().push([(27,-38)]).circle(62).push([(41,5)]).circle(15,mode='s').finalize().extrude(-12))