import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-40,0))
w1=cq.Workplane('XY',origin=(0,0,13))
r=w0.sketch().push([(54,62)]).circle(38).push([(54,62.5)]).rect(26,63,mode='s').finalize().extrude(-19).union(w0.sketch().segment((-92,13),(-40,13)).segment((-40,17)).arc((-34,27),(-40,37)).segment((-40,56)).segment((-92,56)).close().assemble().reset().face(w0.sketch().segment((-78,-73),(-61,-88)).segment((-59,-85)).segment((-76,-70)).close().assemble()).finalize().extrude(85)).union(w1.sketch().segment((-100,-28),(-33,-28)).segment((-33,-5)).arc((-21,5),(-14,19)).segment((46,19)).segment((46,53)).segment((-27,53)).arc((-58,58),(-79,36)).segment((-100,36)).close().assemble().finalize().extrude(-4))