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import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-3))
w1=cq.Workplane('ZX',origin=(0,15,0))
r=w0.workplane(offset=-57/2).moveTo(5,28).cylinder(57,18).union(w0.sketch().arc((14,73),(-20,-11),(41,57)).segment((71,53)).segment((73,64)).arc((41,58),(14,73)).assemble().reset().face(w0.sketch().segment((13,60),(14,67)).arc((-15,-8),(32,58)).close().assemble(),mode='s').finalize().extrude(-52)).union(w0.sketch().segment((-73,-37),(-45,-74)).segment((-24,-59)).segment((-52,-21)).close().assemble().finalize().extrude(103)).union(w1.sketch().segment((-100,-60),(-58,-60)).arc((-49,-72),(-39,-60)).segment((-38,-60)).segment((-38,26)).segment((-100,26)).close().assemble().push([(-81,8)]).circle(10,mode='s').finalize().extrude(-5))