| import cadquery as cq | |
| w0=cq.Workplane('YZ',origin=(-4,0,0)) | |
| r=w0.sketch().segment((-11,-50),(11,-50)).segment((11,-45)).arc((46,0),(11,45)).segment((11,50)).segment((-11,50)).segment((-11,45)).arc((-46,0),(-11,-45)).close().assemble().finalize().extrude(9) |