It seems like the Codeblocks is limited to adding new objects from the collection of primitives. This feels very limiting in the scope of possible shapes. I'd really like to modify a shape by insertion or deletion with another shape.
For example, being able to remove a cylinder from an extruded star to make a gear with an axle hole.
I don't know if you found the answer on your own. It is really rather simple and I wonder why no one has answered. When you pick up the cylinder you are immediately offered 2 options, one is a color select and the other bluish looking thing is supposed to be clear. When you click the bluish thing, it will draw in the area you don't want material in a bluish shape. When you run your codeblocks, just before the end, the blue disappears and you are left with that shape hole. You can do this all the way through, or part way. I hope this helps.
Thank you. Trying this out, it was very confusing to me, mostly because I do not see the hole in the preview when I run the blocks. It does show with some dithered look. It wasn’t clear it was working for me until I tried to export the part.
