| import cadquery as cq | |
| w0=cq.Workplane('YZ',origin=(-28,0,0)) | |
| r=w0.sketch().arc((-4,-16),(30,-33),(49,-1)).arc((11,33),(-4,-16)).assemble().finalize().extrude(-15).union(w0.sketch().segment((-50,10),(0,10)).arc((-9,14),(-16,21)).segment((-16,15)).segment((-29,14)).segment((-29,23)).segment((-18,23)).arc((-20,25),(-21,28)).segment((-50,28)).close().assemble().finalize().extrude(71)) |