| import cadquery as cq | |
| w0=cq.Workplane('ZX',origin=(0,-1,0)) | |
| r=w0.workplane(offset=-29/2).moveTo(1,-41).cylinder(29,2).union(w0.sketch().push([(-32,-10)]).circle(18).reset().face(w0.sketch().segment((-31,-4),(-17,-5)).segment((-17,-4)).segment((-31,-3)).close().assemble(),mode='s').push([(24.5,17.5)]).rect(51,51).finalize().extrude(32)) |