import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,20,0))
w1=cq.Workplane('XY',origin=(0,0,19))
r=w0.sketch().segment((49,27),(49,32)).arc((4,-37),(51,30)).segment((51,27)).close().assemble().finalize().extrude(-57).union(w0.workplane(offset=80/2).moveTo(27,-3).cylinder(80,17)).union(w1.sketch().segment((-33,-100),(15,-100)).segment((15,-84)).arc((34,-50),(15,-17)).segment((15,-9)).segment((-33,-9)).segment((-33,-24)).arc((-43,-50),(-33,-76)).close().assemble().finalize().extrude(-82))