| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,50)) | |
| r=w0.sketch().segment((-29,-20),(-19,-20)).segment((-19,-37)).segment((21,-37)).segment((21,-22)).segment((27,-22)).segment((29,35)).segment((-27,37)).close().assemble().finalize().extrude(-100) |