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How is a thickness planer used ?

It is widely known that wood commonly warps or bends, particularly after cutting out of a log. As such, woodworkers developed several ways of “surfacing” rough lumber to create a flat final product. Some woodworkers use hand tools in surfacing, while others prefer power tools like a jointer.

Once passed through a jointer several times, the wood receives a flatter surface. However, if used with excessive passes, once you turn over the board to the other side, it could result in one side being flat, while the other side being unparalleled to the first side.

Another tool used in surfacing is a thickness planer. This device controls the thickness of wood and ensures that the first side is always parallel to the other side. A thickness planer is a kind of power tool with a cutting head on top and a flat base; it removes small amounts of wood in successive passes to arrive at the desired wood thickness. The wood is placed in its power rollers and into the cutting blades to remove up to 1mm of material. Once completed, the wood will now have two flat, parallel faces. However, the surfacing method would only be completed when the board is placed back into the jointer to make square edges.

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