| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,50)) | |
| r=w0.sketch().segment((-37,-2),(-24,-2)).arc((0,-25),(24,-2)).segment((37,-2)).segment((37,2)).segment((24,2)).arc((0,25),(-24,2)).segment((-37,2)).close().assemble().finalize().extrude(-100) |