import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,47))
r=w0.workplane(offset=-94/2).moveTo(82,-45).box(36,74,94).union(w0.sketch().segment((-100,61),(-76,29)).arc((-72,0),(-45,-13)).segment((-21,-46)).segment((7,-25)).segment((-8,-4)).segment((28,-4)).arc((28,-2),(29,-1)).segment((29,34)).segment((-19,34)).arc((-31,46),(-48,50)).segment((-72,82)).close().assemble().push([(-46,18)]).circle(28,mode='s').finalize().extrude(-83))