Tessellating 3 drillers, 2 underground belts and 1 electricity pylon to maximise drilling output (just add underground belts to the end as necessary)
by Unknown Author · updated 12/12/2017 · 1161

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Tessellating 3 drillers, 2 underground belts and 1 electricity pylon to maximise drilling output (just add underground belts to the end as necessary)