| import cadquery as cq | |
| w0=cq.Workplane('ZX',origin=(0,-3,0)) | |
| r=w0.sketch().segment((-23,-9),(-14,-9)).arc((0,-17),(14,-9)).segment((23,-9)).segment((23,9)).segment((14,9)).arc((0,17),(-14,9)).segment((-23,9)).close().assemble().finalize().extrude(-47).union(w0.workplane(offset=53/2).box(8,6,53)) |