| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,-16)) | |
| r=w0.workplane(offset=-22/2).cylinder(22,7).union(w0.sketch().segment((-50,40),(-46,-8)).arc((-33,-12),(-45,-17)).segment((-42,-49)).segment((50,-40)).segment((45,21)).segment((45,49)).segment((-1,49)).segment((-1,45)).close().assemble().finalize().extrude(53)) |