| import cadquery as cq | |
| w0=cq.Workplane('ZX',origin=(0,38,0)) | |
| r=w0.workplane(offset=-77/2).moveTo(-23,-19).cylinder(77,26).union(w0.sketch().segment((17,-50),(27,-50)).segment((27,-13)).arc((30,-6),(27,1)).segment((27,2)).arc((23,50),(17,3)).segment((17,1)).arc((14,-6),(17,-13)).close().assemble().finalize().extrude(-21)) |