Positive Dome Shape

[xchrisd]

I suggest to use fusion360 for modeling and generating carving codes, it’s more powerful than Luban.
Have a look at this:

Snapmaker Academy: Fusion 360 CAD & CAM Tutorial for CNC Beginners

New to Fusion 360 and cnc milling? Come and check this Fusion 360 CAD and CAM video tutorial that is super friendly for CNC beginners. In episode 2 of Snapmaker Academy, we’ll show you how to create a 3d model, set up the manufacturing process, and carve it out with Snapmaker, from start to finish. Guess it would be a great opportunity to explore the world of model designing and CNC stuff. [Fusion 360 CAD & CAM Tutorial for CNC Beginners [Snapmaker Academy]]