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import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,1))
w1=cq.Workplane('ZX',origin=(0,-8,0))
r=w0.sketch().segment((-78,-26),(-71,-26)).segment((-71,-25)).arc((-49,0),(-71,26)).segment((-78,26)).arc((-100,0),(-78,-25)).close().assemble().push([(-75,0)]).circle(1,mode='s').circle(1).finalize().extrude(-49).union(w0.sketch().arc((47,-5),(46,-55),(91,-34)).arc((87,9),(47,-5)).assemble().finalize().extrude(-23)).union(w0.sketch().segment((-7,-50),(20,-50)).segment((20,-28)).arc((7,-33),(-7,-28)).close().assemble().finalize().extrude(25)).union(w1.sketch().segment((-7,33),(-3,33)).arc((26,-24),(13,39)).segment((13,45)).arc((3,41),(-7,45)).close().assemble().finalize().extrude(68))