| import cadquery as cq | |
| w0=cq.Workplane('YZ',origin=(-20,0,0)) | |
| r=w0.sketch().segment((-41,-18),(-23,-18)).segment((-23,-50)).segment((-1,-50)).segment((-1,-18)).segment((41,-18)).segment((41,50)).segment((-41,50)).close().assemble().push([(-23,7)]).circle(11,mode='s').push([(-1,16)]).circle(9,mode='s').finalize().extrude(41) |