import cadquery as cq
w0=cq.Workplane('YZ',origin=(-4,0,0))
r=w0.sketch().segment((-100,-5),(-9,-5)).segment((-9,-27)).segment((24,-27)).segment((24,-37)).segment((-9,-37)).segment((-9,-46)).segment((-8,-46)).segment((-8,-39)).segment((6,-39)).segment((6,-46)).segment((13,-46)).segment((13,-66)).segment((20,-66)).segment((20,-46)).segment((27,-46)).segment((27,-45)).segment((46,-45)).arc((44,-44),(43,-44)).segment((43,-1)).segment((20,-1)).segment((20,18)).segment((13,18)).segment((13,-1)).segment((12,-1)).segment((12,14)).segment((-100,14)).close().assemble().reset().face(w0.sketch().arc((32,-66),(39,-68),(46,-66)).close().assemble()).finalize().extrude(2).union(w0.workplane(offset=8/2).moveTo(44.5,28).box(111,80,8))