[wizzwizz4]

No, it doesn't: I can build a machine described in an All Rights Reserved book. CC BY-SA-NC grants additional permissions on top of that, but it doesn't remove any. You're thinking of patents.

[happymellon]

https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en

> NonCommercial — You may not use the material for commercial purposes.

I mean, the licence says that I can't...