| import cadquery as cq | |
| w0=cq.Workplane('ZX',origin=(0,50,0)) | |
| r=w0.sketch().circle(44).reset().face(w0.sketch().segment((-31,-18),(-9,-18)).arc((-20,0),(-9,18)).segment((-31,18)).close().assemble(),mode='s').reset().face(w0.sketch().segment((9,-18),(31,-18)).segment((31,18)).segment((9,18)).arc((20,0),(9,-18)).assemble(),mode='s').finalize().extrude(-100).union(w0.sketch().circle(36).rect(48,38,mode='s').finalize().extrude(-79)) |