| import cadquery as cq | |
| w0=cq.Workplane('YZ',origin=(38,0,0)) | |
| r=w0.sketch().segment((-44,-50),(46,-50)).segment((46,50)).segment((-44,50)).segment((-44,-19)).arc((-46,-21),(-44,-23)).close().assemble().push([(1,0)]).rect(58,56,mode='s').finalize().extrude(-76) |