| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,39)) | |
| r=w0.sketch().push([(-1,-20)]).circle(30).rect(14,14,mode='s').finalize().extrude(-79).union(w0.sketch().segment((-40,13),(-33,13)).arc((-1,-16),(33,13)).segment((40,13)).segment((40,20)).segment((33,20)).arc((-1,50),(-33,20)).segment((-40,20)).close().assemble().finalize().extrude(-61)) |