| import cadquery as cq | |
| w0=cq.Workplane('YZ',origin=(21,0,0)) | |
| r=w0.sketch().segment((-50,-47),(50,-47)).segment((50,-41)).segment((50,41)).segment((50,47)).segment((-50,47)).segment((-50,41)).segment((-50,-41)).close().assemble().reset().face(w0.sketch().segment((-20,-11),(3,-23)).segment((20,11)).segment((-3,23)).close().assemble(),mode='s').finalize().extrude(-43) |