| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,29)) | |
| r=w0.sketch().segment((-27,-50),(27,-50)).segment((27,-20)).arc((34,0),(27,20)).segment((27,50)).segment((-27,50)).segment((-27,20)).arc((-34,0),(-27,-20)).close().assemble().finalize().extrude(-58) |