| import cadquery as cq | |
| w0=cq.Workplane('YZ',origin=(-21,0,0)) | |
| r=w0.sketch().segment((-25,-46),(-20,-46)).arc((0,-50),(20,-46)).segment((25,-46)).segment((25,-43)).arc((50,0),(25,43)).segment((25,46)).segment((20,46)).arc((0,50),(-20,46)).segment((-25,46)).segment((-25,43)).arc((-50,0),(-25,-43)).close().assemble().push([(7,6)]).circle(16,mode='s').finalize().extrude(43) |