| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,-3)) | |
| r=w0.sketch().segment((-9,-5),(6,-9)).segment((9,5)).segment((-6,9)).close().assemble().rect(8,12,mode='s').finalize().extrude(-47).union(w0.sketch().rect(94,88).rect(86,18,mode='s').finalize().extrude(53)) |