Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Output: 90 science pack/minute (each)
Input materials: 1 belt of iron plate / 1 belt or copper plate
Consumption: 0.85 belt of iron plate / 0.30 belt of copper plate
Materials: 141 yellow belts / 2 underground belts / 44 yellow inserters / 20 fast inserters / 30 assembling machines / 24 small electric poles