import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-31))
r=w0.sketch().segment((-8,-28),(-8,-21)).arc((6,-49),(-3,-19)).segment((0,-19)).segment((0,-28)).close().assemble().finalize().extrude(4).union(w0.workplane(offset=62/2).moveTo(-5,39).cylinder(62,11))