import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-34,0))
r=w0.sketch().segment((-88,32),(-18,32)).arc((-10,31),(-1,32)).segment((68,32)).segment((68,99)).segment((-1,99)).arc((-10,100),(-18,99)).segment((-88,99)).close().assemble().finalize().extrude(-16).union(w0.workplane(offset=-14/2).moveTo(17,-29).cylinder(14,71)).union(w0.sketch().push([(17,-29)]).circle(61).push([(16.5,-29)]).rect(99,64,mode='s').finalize().extrude(84))