import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-12))
r=w0.sketch().segment((-29,16),(-15,16)).segment((-15,6)).segment((43,6)).segment((43,40)).segment((40,40)).segment((40,18)).segment((34,18)).segment((34,74)).segment((15,74)).segment((6,88)).segment((-3,82)).segment((2,74)).segment((-29,74)).close().assemble().finalize().extrude(-36).union(w0.workplane(offset=-32/2).moveTo(-61,-49).cylinder(32,39)).union(w0.sketch().push([(62.5,-43.5)]).rect(75,69).push([(62,-44)]).rect(50,24,mode='s').finalize().extrude(60))