import cadquery as cq
w0=cq.Workplane('YZ',origin=(-15,0,0))
w1=cq.Workplane('YZ',origin=(-34,0,0))
r=w0.sketch().push([(0,-14.5)]).rect(70,41).push([(-21,-24)]).circle(4,mode='s').finalize().extrude(23).union(w0.sketch().push([(0,-15)]).circle(4).circle(2,mode='s').reset().face(w0.sketch().segment((7,48),(23,48)).arc((15,50),(7,48)).assemble()).finalize().extrude(45)).union(w0.sketch().arc((-9,-19),(9,-12),(-9,-17)).segment((-8,-17)).segment((-8,-19)).close().assemble().finalize().extrude(62)).union(w1.workplane(offset=-12/2).moveTo(0,-15).cylinder(12,35))