The cheapest way to get my 3D printable models is to subscribe to my Patreon page.
You'll get 2 STL files:
All pieces are keyed.
YOU CANNOT SELL OR TRANSFER THE FILES OR THE PRINTS FROM THE FILE. YOU CAN PRINT THEM FOR PERSONAL USE.
For personal use and one commercial project (up to 2,000 sales or 20,000 views).
One copy to be used by a single user.
One installation by a single user.