Axle

The Wooden Axle (more commonly known just as the axle) from Better With Mods is the item that will allow you to connect machines to a Water Wheel (BWM) for automation purposes. You can link up to three (3) axles in a line before they will no longer rotate.

Age 1 and Above
They are crafted using two (2) sticks, two (2) hemp ropes, and one (1) Black Quartz, in the shape indicated in the JEI interface.

Age 2 and Above
As of Age 2 and beyond, you can now craft an axle with one (1) hemp rope and two (2) Planks Moulding. Check the JEI interface for the shape.