import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-21,0))
w1=cq.Workplane('YZ',origin=(-19,0,0))
r=w0.workplane(offset=36/2).moveTo(-15,-20).cylinder(36,12).union(w0.sketch().segment((-45,-8),(-7,-50)).segment((45,-3)).segment((7,39)).segment((-8,25)).arc((-18,29),(-28,24)).segment((-13,21)).segment((-26,9)).segment((-31,11)).arc((-31,8),(-29,6)).close().assemble().finalize().extrude(61)).union(w1.workplane(offset=69/2).moveTo(-10,-15).cylinder(69,29))