import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,14,0))
w1=cq.Workplane('ZX',origin=(0,-16,0))
r=w0.workplane(offset=-24/2).moveTo(0,43).box(74,80,24).union(w0.sketch().segment((-25,-62),(-24,-62)).segment((-24,-83)).segment((0,-83)).segment((0,-73)).segment((18,-73)).segment((18,-29)).segment((-15,-29)).segment((-15,-40)).segment((-24,-40)).segment((-24,-61)).segment((-25,-61)).close().assemble().finalize().extrude(86)).union(w1.sketch().push([(2,-51)]).rect(70,38).circle(3,mode='s').finalize().extrude(-84))