import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-4,0))
w1=cq.Workplane('XY',origin=(0,0,-3))
r=w0.sketch().push([(-38,15)]).circle(12).circle(5,mode='s').push([(-2.5,-18.5)]).rect(13,27).reset().face(w0.sketch().segment((23,24),(42,4)).segment((50,12)).segment((32,32)).close().assemble()).finalize().extrude(-5).union(w0.sketch().push([(-21.5,8.5)]).rect(37,15).push([(-21,8)]).circle(3,mode='s').finalize().extrude(26)).union(w1.sketch().push([(0,-15)]).circle(7).circle(4,mode='s').finalize().extrude(2))