Nedd help with the windmills

[MrShake]

Hi guys,
I am kinda new to the game but i am close to steel however i am still working out the kinks of my windmill. I want to make it as efficient as possible but using only one rotor. Any ideas to how i can improve on this gearbox?

 

[Krougal]

Here is my setup, you can use 1 rotor if you wish, but then you are probably not going to be able to run 3 helve hammers:

This is a great video, I learned a lot from it: