| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,-27)) | |
| r=w0.sketch().push([(-1,-23)]).circle(13).circle(4,mode='s').reset().face(w0.sketch().arc((5,28),(8,27),(11,28)).close().assemble()).reset().face(w0.sketch().segment((5,32),(11,32)).arc((8,34),(5,32)).assemble()).finalize().extrude(-23).union(w0.workplane(offset=77/2).moveTo(8,30).cylinder(77,6)) |