Tileable, inheritable defence perimeter for 50 x 50 city blocks Slightly modified defense for 50x50 blocks with more convenient access to gates, with the ability to throw a symmetrical power line along the rails and for different stages of the game

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Tileable, inheritable defence perimeter for 50 x 50 city blocks Slightly modified defense for 50x50 blocks with more convenient access to gates, with the ability to throw a symmetrical power line along the rails and for different stages of the game