I would use a dado blade on a table saw. If you are using a router in a router table setup and your cut is wandering make sure you're feeding in the right direction and you are using hold-downs and feather boards.
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Sounds like you're trying to feed the board into the bit by moving the board. Generally a dado like this should be cut by running the router across the board using some sort of guide clamped to the workpiece.
The following video is on how to make a jig called an exact fit dado jig, which allows you to easily make perfect dados with the router. It is reusable. Next best way to make them is with a table saw, be even there you will find it requires a jig to reliably make the cut 90 degrees to the edge of the board.
Here's the video. Pay particular attention to how carefully he set the glued pieces 90 degrees to the longer guide pieces. And notice that he took pains to make sure the guide edge is dead flat. You will be using a half inch trim bit, maybe 3/4 inch long with a bearing at its base. Attached is a picture of such a jig and small mortising bit with half inch shank.
The following video is on how to make a jig called an exact fit dado jig, which allows you to easily make perfect dados with the router. It is reusable. Next best way to make them is with a table saw, be even there you will find it requires a jig to reliably make the cut 90 degrees to the edge of the board.
Here's the video. Pay particular attention to how carefully he set the glued pieces 90 degrees to the longer guide pieces. And notice that he took pains to make sure the guide edge is dead flat. You will be using a half inch trim bit, maybe 3/4 inch long with a bearing at its base. Attached is a picture of such a jig and small mortising bit with half inch shank.
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more on feed direction....
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Here are the pictures
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have you considered this joint... (shouldered dado)
have you considered a dado blade for your TS???
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have you considered a dado blade for your TS???
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When bilding cabinets, I had been using 3/8 inch deep dadoes. Then one day, I backed off to 1/4 inch depth. Never had any problems. That was 60-70 cabinets, and numerous other projects ago.
I use the exact width dado jig that was referenced. I built it several years ago and drew up the drawing. It has served me well. Make that jig and you will love it.
I use the exact width dado jig that was referenced. I built it several years ago and drew up the drawing. It has served me well. Make that jig and you will love it.
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