Factorio Walls
thingiverse
Assemble Factorio Walls Seamlessly I've yet to test double-thick walls, but I'm confident they'll function as expected.
Download Model from thingiverse
With this file you will be able to print Factorio Walls with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Factorio Walls.