import cadquery as cq
w0=cq.Workplane('YZ',origin=(27,0,0))
r=w0.sketch().arc((44,7),(44,8),(46,8)).arc((36,25),(44,7)).assemble().finalize().extrude(-54).union(w0.sketch().push([(-8,-9.5)]).rect(84,33).push([(-8,-10)]).circle(5,mode='s').finalize().extrude(-24)).union(w0.sketch().segment((-38,-7),(-37,-17)).segment((21,-12)).segment((21,-2)).close().assemble().finalize().extrude(-17))