import cadquery as cq
w0=cq.Workplane('YZ',origin=(18,0,0))
w1=cq.Workplane('ZX',origin=(0,-42,0))
r=w0.sketch().arc((-58,7),(-48,5),(-46,-5)).arc((-38,15),(-58,7)).assemble().finalize().extrude(-118).union(w1.workplane(offset=101/2).moveTo(0,69).cylinder(101,31))