Are you asking to steal it? The creator VERY CLEARLY asks for a small donation for the BOM and other data beyond the 3D files.
"...Because some of my previous designs got stolen and commercialised and this project took a tons of time I've decided to share only 3D designed parts and some enclosure dimensions. This should be sufficient to build enclosure on your own with little calculations and effort.
If you need more information or you don't have time to make measurements yourself, for everyone that will donate 10$ or more on my paypal (https://www.paypal.me/JureKorber/) I will provide on your mail:..."