| import cadquery as cq | |
| w0=cq.Workplane('ZX',origin=(0,16,0)) | |
| r=w0.sketch().segment((-1,-50),(1,-50)).segment((1,-45)).arc((45,0),(1,45)).segment((1,50)).segment((-1,50)).segment((-1,45)).arc((-45,0),(-1,-45)).close().assemble().finalize().extrude(-33) |