Reply by clin

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Posted on Trouble making a long dado

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1128 posts in 2279 days

#1 posted 10-31-2017 08:23 PM

It’s technique and practice makes perfect. You didn’t mention how wide the sheet was. If it is narrow enough, you could use a feather board to help hold it against the fence. But paying attention and feed the sheet evenly should be easy enough.

As long as you know where your hands are and can keep them away from the blade area, there’s no reason to look at where you think the blade is under the sheet. Keep your eyes on where the sheet meets the fence. Though I’m pretty sure I keep my eyes moving, sheet/fence hands and back.

While you do need to keep it up against the fence, most of your force should be pushing forward. If you apply too much force on the corner away from the fence, you’ll tend to pull the back end away from the fence and start twisting the sheet. It’s actually pretty hard to do the opposite when you are only 4” from the fence. But the same principle applies.

You are pushing against the blade so the forward force needs to be more or less in front of the blade with just enough side force to keep it against the fence. But the force needs to be straight, not a twisting. Straight, as if you were trying to slide the sheet in a straight line just slightly angled into the fence.

Keep in mind if the near end of the sheet starts moving away from the fence, the sheet itself won’t have moved much at the blade, so you can correct with little or no harm. Your eye should be able to detect very thin gaps before they become big ones and screw it all up.

-- Clin

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