import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-17,0))
r=w0.sketch().push([(-43,-89)]).circle(11).push([(-42.5,-89)]).rect(7,4,mode='s').push([(13,59)]).circle(41).finalize().extrude(-19).union(w0.workplane(offset=53/2).moveTo(2,-6).cylinder(53,20))