There are whole calculators for that based on the number of items per minute you want or the number of factories you want to feed. This link is for 1 of each of

There are whole calculators for that based on the number of items per minute you want or the number of factories you want to feed. This link is for 1 of each of the non military sciences per second for example. You can even include modules and beacons. https://kirkmcdonald.github.io/calc.html#zip=dcyxCoAwDATQv3GyoItgoR8T0qDBtilNOvj3ulu55bgHF8EgrO7NPrFR1gDdJIOxFKfIVJBcBbx889syJzlYjXFAeFJmhDSg2iR2/LnsxontHoi+lb77Aw== https://kirkmcdonald.github.io/calc.html#zip=dcyxCoAwDATQv3G...