Reply by teejk02

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Posted on Newbie question about Jointers

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504 posts in 2186 days

#1 posted 03-12-2019 11:32 PM

This is the kind of confusion that comes from Sears claiming for decades that their jointer was a “planer/jointer.”

- runswithscissors
Well in a sense the jointer is a planer, just not a thickness planer.

- teejk02

There is a big difference in the function of jointer and a planer. A jointer has no pressure rollers like a planer. If it did you d never get a flat board because the rollers would press the bow or twist out of the board and you would end up the the same bow and twist, just thinner. A planer will make a board that has parallel surface that mirrors the face that has been jointed and to make you stock a certain thickness.

This says it better than I can.

- AlaskaGuy

Not to split hairs here other than to say that the “planer” as we know it derives from the hand plane…making a surface flat with a blade and a stable base. Turn your jointer upside down (not recommended) on a piece of wood and you are doing the same thing.

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