import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,3))
r=w0.sketch().segment((-24,5),(-17,-5)).segment((-7,1)).segment((2,1)).segment((2,8)).segment((15,17)).segment((8,28)).segment((0,21)).segment((-11,21)).segment((-11,14)).close().assemble().finalize().extrude(-53).union(w0.workplane(offset=19/2).moveTo(4,-18).box(48,20,19)).union(w0.workplane(offset=47/2).moveTo(-24,19).cylinder(47,4))