import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,41,0))
w1=cq.Workplane('ZX',origin=(0,-8,0))
r=w0.sketch().segment((7,-72),(13,-72)).segment((10,-76)).segment((48,-100)).segment((60,-82)).arc((30,-79),(24,-49)).segment((7,-49)).close().assemble().finalize().extrude(-21).union(w0.sketch().segment((-60,62),(-10,-16)).segment((49,22)).segment((21,65)).segment((21,98)).segment((0,98)).segment((-1,100)).segment((-4,98)).segment((-17,98)).segment((-17,90)).close().assemble().finalize().extrude(-13)).union(w1.sketch().push([(-5,42)]).circle(33).push([(-1,11)]).circle(1,mode='s').finalize().extrude(-33))