| import cadquery as cq | |
| w0=cq.Workplane('YZ',origin=(21,0,0)) | |
| r=w0.sketch().rect(64,82).reset().face(w0.sketch().segment((-17,17),(-16,2)).segment((15,2)).segment((14,20)).close().assemble(),mode='s').reset().face(w0.sketch().segment((-15,-2),(-14,-20)).segment((17,-17)).segment((16,-2)).close().assemble(),mode='s').finalize().extrude(-71).union(w0.sketch().circle(19).circle(15,mode='s').finalize().extrude(29)) |