import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-41,0))
w1=cq.Workplane('ZX',origin=(0,-20,0))
r=w0.sketch().arc((-31,28),(-2,-27),(50,8)).segment((32,8)).arc((-4,5),(-31,28)).assemble().finalize().extrude(83).union(w1.workplane(offset=50/2).moveTo(-33,-8).cylinder(50,17))