| import cadquery as cq | |
| w0=cq.Workplane('XY',origin=(0,0,21)) | |
| r=w0.workplane(offset=-71/2).moveTo(-21.5,16.5).box(13,5,71).union(w0.sketch().segment((-11,-34),(28,-34)).segment((28,12)).segment((10,12)).arc((3,34),(-8,14)).arc((-8,13),(-7,12)).segment((-11,12)).close().assemble().finalize().extrude(29)) |