Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Just a perimeter walls/defense I use. Built around city blocks (50x50).
Roboports are placed as far as possible to minimize bots getting into accidents. The wall with a (dual-sided) pump needs to be placed from time to time to avoid overextending the flamethrower turret fuel pipeline.
