Grind Stone
The Grind Stone is in the Basic Machines category. It is a multiblock structure.
The Grind Stone is a multiblock structure, it consists of a dispenser and a fence.
A complete setup should look like this:
You can also place an Output Chest next to the dispenser to collect your resources. If there is no Output Chest, then it will be put in the dispenser.
The Grind Stone can be used to grind items/blocks into other items/blocks, check out the Grind Stone in the Slimefun Guide in-game for more recipes.
To use the Grind Stone, you need to put your items in the dispenser and then right click the fence to convert your items, if a viable conversion is possible.