import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-18,0))
w1=cq.Workplane('ZX',origin=(0,-16,0))
r=w0.sketch().segment((-50,15),(-39,2)).segment((-39,-5)).segment((-33,-5)).segment((-20,-21)).segment((-14,-15)).segment((-22,-5)).segment((-7,-5)).segment((-7,42)).segment((-39,42)).segment((-39,15)).segment((-43,21)).close().assemble().push([(31,16)]).circle(19).finalize().extrude(12).union(w0.sketch().segment((2,-42),(9,-42)).segment((9,-41)).arc((27,-20),(9,1)).segment((9,3)).segment((2,3)).segment((2,1)).arc((-16,-20),(2,-41)).close().assemble().finalize().extrude(36)).union(w1.sketch().push([(16,-22.5)]).rect(36,3).push([(15.5,-22.5)]).rect(1,1,mode='s').finalize().extrude(28))