Step 12: Layout coils
Once again, follow the template. This is by far the most confusing part, and I think the template should really help. Lay down one group (e.g. "A"), then another, then another.
Check that the current all flows one way. That is, if you imagine an electron running through the coils, it always enters the coil from one particular side and exits from another. Just don't cross the wires over, and you should be fine. The arrows on template should help you think about how the electrons should be running through the coil wraps.
Now glue those coils down. Glue 'em down good.
Once that's set, solder the remaining three ends together (the ones not soldered to thick wire that should be sticking out of the "4" coils). This is the neutral point. In our circuit, you won't need to access this junction again, so you can tape it down or otherwise hide it under the coils' base, along with excess lengths of the other connections. In fact, the more you can do to tidy up stray wires, the better. A malfunctioning turbine that comes out of its divots has a nasty tendency to grab exposed wire and tear it up. Fun to watch, but hell to repair.
What you should have left are the three thicker wires connected to the "1" coils on each of the groups. This will lead into the AC to DC conversion circuit.