| import cadquery as cq | |
| w0=cq.Workplane('YZ',origin=(-25,0,0)) | |
| r=w0.sketch().arc((-23,-39),(-29,-49),(-22,-40)).close().assemble().finalize().extrude(-7).union(w0.sketch().arc((23,38),(31,42),(32,50)).arc((30,43),(23,38)).assemble().finalize().extrude(57)) |