Description
If your jointer keeps tearing out wood, it probably isn't your jointer. Let me show you a quick trick that can save your next board.
When you push stock forward, you want the grain leaning toward the cutterhead. That lets the knives shave along the fibers.
But if the grain is leaning in the same direction the knife is cutting, this is when tearout becomes a real problem.
Normally, if I have plenty of wood and I get a bit of tearout, I'll just reverse the stock and make another pass, which usually cleans up the previous cut.
But if you've only got a slim amount of stock to work with, that creates a real dilemma.
Unless you have X-ray vision, how do you know which way those fibers are actually leaning?
If I attach a mic to a rag and drag it across my stock, you can hear a difference when I go one way versus the other. One direction sounds smoother, and the other catches on the fibers.
Now, you don't have to buy a mic to do this. It's actually much easier to feel the difference with your hand.
It's one of the easiest ways I know to predict grain direction before you make the cut.
I cover three simple ways to prevent jointer tearout in my latest Make Things Simplified video. If you're interested, click on the video below.
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