import cadquery as cq
w0=cq.Workplane('YZ',origin=(-27,0,0))
w1=cq.Workplane('YZ',origin=(-14,0,0))
r=w0.sketch().push([(-1,-21)]).circle(24).reset().face(w0.sketch().segment((-2,-31),(0,-31)).segment((0,-21)).segment((-2,-22)).close().assemble(),mode='s').reset().face(w0.sketch().segment((-2,-20),(0,-19)).segment((0,-11)).segment((-2,-11)).close().assemble(),mode='s').finalize().extrude(-8).union(w0.sketch().push([(-5,-36)]).circle(14).circle(11,mode='s').reset().face(w0.sketch().segment((-17,-4),(26,-5)).segment((27,9)).segment((-17,10)).close().assemble()).finalize().extrude(37)).union(w1.workplane(offset=49/2).moveTo(-12,35).cylinder(49,15))