Windmill
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A windmill is a multi-blocks generator used to empower advanced machines. It is composed of one windmill bearing, one or more radial chassis (which have 4 faces coated with slime) connected to the face of the windmill bearing, on which are fixed some wool.
Usage
When you have finished to place all blocks, then, right-click with an empty hand on the windmill bearing to start the windmill. If you want to stop it to change the wool setup, redo an empty right-click on the block.