import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-22,0))
r=w0.sketch().push([(-45.5,8.5)]).rect(9,59).push([(-7.5,18.5)]).rect(59,23).reset().face(w0.sketch().segment((-28,11),(-25,8)).segment((-19,13)).segment((-22,16)).close().assemble(),mode='s').push([(30,-24)]).circle(20).push([(30.5,-24)]).rect(27,18,mode='s').finalize().extrude(-12).union(w0.sketch().push([(-7,19)]).circle(25).circle(15,mode='s').finalize().extrude(56))