| import cadquery as cq | |
| w0=cq.Workplane('ZX',origin=(0,19,0)) | |
| r=w0.sketch().arc((-19,5),(-18,10),(-14,8)).arc((-41,43),(-19,5)).assemble().finalize().extrude(-37).union(w0.sketch().push([(25,-37)]).rect(50,20).reset().face(w0.sketch().arc((30,-30),(18,-41),(33,-36)).segment((38,-36)).segment((38,-27)).segment((30,-27)).close().assemble(),mode='s').finalize().extrude(-19)) |