import cadquery as cq
w0=cq.Workplane('YZ',origin=(23,0,0))
r=w0.sketch().segment((-29,23),(-26,23)).segment((-23,5)).segment((6,10)).segment((3,23)).segment((5,23)).segment((5,32)).segment((2,32)).segment((-1,50)).segment((-29,45)).segment((-27,32)).segment((-29,32)).close().assemble().reset().face(w0.sketch().segment((-23,21),(-11,14)).segment((0,34)).segment((-12,41)).close().assemble(),mode='s').reset().face(w0.sketch().segment((3,-50),(15,-50)).segment((15,-49)).arc((29,-29),(15,-10)).segment((15,-8)).segment((3,-8)).segment((3,-10)).arc((-11,-29),(3,-49)).close().assemble()).finalize().extrude(-46).union(w0.workplane(offset=-12/2).moveTo(-9,0).cylinder(12,4))