| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,-21)) | |
| r=w0.workplane(offset=42/2).moveTo(-46,-36).cylinder(42,4).union(w0.sketch().segment((9,-42),(50,-42)).segment((50,-21)).segment((36,-21)).segment((36,-17)).segment((22,-17)).segment((22,-21)).segment((9,-21)).close().assemble().push([(27,-35)]).rect(12,12,mode='s').reset().face(w0.sketch().segment((27,15),(30,15)).segment((33,41)).segment((30,42)).close().assemble()).finalize().extrude(42)) |