| import cadquery as cq | |
| w0=cq.Workplane('ZX',origin=(0,38,0)) | |
| r=w0.sketch().arc((-21,22),(-42,-34),(17,-24)).arc((40,34),(-21,22)).assemble().finalize().extrude(-77).union(w0.sketch().arc((47,14),(50,26),(47,39)).close().assemble().finalize().extrude(2)) |