2.66 circuits. Self contained, no importers. Probably lots of room for improvement too. But that’s the best I’ve come up with for now. Also uses only normal grabbers.
**Size:**12x12
**Material:**Substance
**Size:**12x12
**Material:**Iron Plates
**Rate:**21.82
**Material:**Copper Wire
**Rate:**21.82
**Material:**Circuits
**Rate:**10.92
**Reliability:**Stable
**Size:**12x12
**Material:**Substance
**Rate:**20.0
**Material:**Iron Bolts
**Rate:**5.0
**Material:**Iron Plates
**Rate:**10.0
**Material:**Steel Plates
**Rate:**3.75
**Material:**Gearbox
**Rate:**2.5
**Material:**Iron Plates
**Rate:**10.0
**Material:**Iron Bolts
**Rate:**5.0
**Reliability:**Stable
**Size:**12x12
**Material:**Substance
**Rate:**77.15
**Material:**Sulfuric Acid
**Rate:**0.56
**Reliability:**Stable