import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,33))
r=w0.sketch().arc((-2,44),(-49,9),(6,-11)).arc((9,-11),(11,-12)).segment((11,-50)).segment((49,-50)).segment((49,37)).segment((43,37)).arc((22,50),(-2,44)).assemble().finalize().extrude(-66)