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It consumes 30 copper ore/sec and 22 iron ore/sec. It produces 1.5 speed module 3's and 1.5 productivity module 3's per minute.
Unloading 6.6 electronic circuits/sec from each assembling machine is a challenge. This design avoids the problem by inserting most of them into processing units.
This is the first design I found where substations are actually useful.
Alternating rows of beacons and assembling machines is very efficient, but they only have room for one belt between them. The solution is to replace half the beacons with underground belts.
The copper furnaces produce 2.5 plates/sec, which is too much for a single inserter. I use boxes to take advantage of the stack size bonus.