![Image](http://i835.photobucket.com/albums/zz274/rlerner/horseshoecircuit_zps7f4e72ea.png)
The horseshoe circuit factory balances wires with circuits, and uses copper buffer chests. This thing SMOKES through copper, so it is advisable to buffer it when demand is low. I set my chests to store maximum two slots of copper bars (256 copper).
The factory here is using assembly machines 3 with 4x Speed Module 3's.
This will work with any combination of assembly machines, however it is important for balancing that the modules are even throughout the factory.
The substation provides power for everything, keeping it slightly less messy.
The output chests (3 of them) help take the large amount of circuits coming in, and help discharge faster. If you want to make it discharge even faster, use the same technique I have used here.
For those who prefer to keep their factory a little more lean, here's a variant that uses smart inserters to dump a limited amount of product into provider chests:
![Image](http://i835.photobucket.com/albums/zz274/rlerner/horseshoecircuit_zpsb68fa293.png)
Here, the output is controlled so that the dependencies and a few circuits are made in the machine, helping it catch up when the circuits fall below the smart inserter's threshold.