import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-32,0))
r=w0.workplane(offset=-39/2).moveTo(-23.5,31).box(67,96,39).union(w0.sketch().arc((-22,-100),(-5,-61),(-22,-21)).close().assemble().finalize().extrude(90)).union(w0.sketch().segment((-41,85),(-40,79)).arc((-29,4),(40,37)).segment((57,40)).segment((47,100)).segment((1,92)).arc((-14,92),(-29,87)).close().assemble().reset().face(w0.sketch().arc((13,88),(24,82),(32,72)).segment((32,88)).close().assemble(),mode='s').finalize().extrude(103))