Dado blades not cutting - Woodworking Talk - Woodworkers Forum
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post #1 of 8 Old 03-02-2019, 11:58 AM Thread Starter
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Dado blades not cutting

I am making a torsion box using 3/4" plywood and overlapping the boards by cutting slots using my dado blades. In most instances, everything works great. I have run into a problem where the blades will not cut through a few of the boards. They stop and spin against the wood. Anyone have an idea on what is going on? Is there a solution?
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post #2 of 8 Old 03-02-2019, 12:52 PM Thread Starter
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SOLVED:
(Head slap!) I am holding multiple boards together with a C-clamp. I didn't notice the grip had slipped and was hitting the front of the table saw. I'm good now.
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post #3 of 8 Old 03-02-2019, 12:56 PM
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Does your saw have an arbor thatís long enough to accommodate the dado stack AND leave enough threads to allow the lock nut to hold adequately? Sounds like you donít have enough threads holding and are probably stripping them out.


In woodworking there is always more then one way to accomplish something.
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post #4 of 8 Old 03-02-2019, 02:03 PM
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Welcome to the forum! When you get a minute add your location to your profile so it shows in the side panel. Add your first name to your signature line so we'll know what to call you, too.

So, you are going to show us your project, correct? We like photos!

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post #5 of 8 Old 03-02-2019, 11:19 PM
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Years ago, I bought an expensive "dial-in" dado blade because I wasn't happy with a multi blade set I owned. I now cut perfect dados with up cut router bits (regular bits will perform better the dado blades). My dado sets are up for sale at a cheap price because I will never use them again. My location is known to this forum...

Its' never hot or cold in New Hampshire... its' always seasonal.
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post #6 of 8 Old 03-03-2019, 08:25 AM
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Quote:
Originally Posted by dtedlock View Post
I am making a torsion box using 3/4" plywood and overlapping the boards by cutting slots using my dado blades. In most instances, everything works great. I have run into a problem where the blades will not cut through a few of the boards. They stop and spin against the wood. Anyone have an idea on what is going on? Is there a solution?
Tighten the nut more or your outside washer is binding to prevent clamp pressure on the blades at the shaft. Tom

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post #7 of 8 Old 03-03-2019, 10:44 AM
where's my table saw?
 
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PROBLEM Solved ....

Quote:
Originally Posted by dtedlock View Post
SOLVED:
(Head slap!) I am holding multiple boards together with a C-clamp. I didn't notice the grip had slipped and was hitting the front of the table saw. I'm good now.

It was not an arbor issue.
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The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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post #8 of 8 Old 03-04-2019, 10:17 AM
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On a separate issue, if you ever need to get the dado blade sharpened, you need to get the entire set sharpened or they will be of differing heights, and will make a lousy cut. This came up in a thread in another site.
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