An updated version of Nytromance Games’s plan, but actually functional: Correct underground pipe and belt lengths.
Though Material 3 is so dead simple and straightforward compared to any of the other SE sciences it barely needs a plan.
This one tucks perfectly into one of the blank areas in the Material 1 plan: It already has perfectly spaced feeds for the Blank Data Cards and Material Testing Packs, and the scrap ejection just feeds into the Material 1 scarp ejection.
Intended to be deployed after Energy 3 to research Supercomputer 2.
Factorio 2.0, Krastorio 2, Space Exploration 0.7x, stringweasel’s Valves mod, and xkyouchoux’s Space Age Building Integration mods. Should be easy to adjust without the last two.