Reply by CharleyL

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Posted on How to dado a PVC pipe

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223 posts in 3783 days

#1 posted 08-07-2015 03:01 AM

You should be able to just slit the pipe and then spread the slit to put it onto the wood. You shouldn’t need a dado blade.

If you make a round hole in a couple of square blocks of wood that tightly fit the ends of the pipe you can set your table saw blade just high enough to make the cut through one side of the pipe. Then set the table saw fence so the saw cut is in the bottom center of the pipe with the blocks of wood riding against the the saw table and the fence to keep the pipe from turning. Make certain that the pipe is longer than you will need and avoid cutting all the way to the wood blocks. Raise the running blade up through one side of the pipe near the first block of wood and then feed the pipe into the blade until the slit is longer than you will need and before you cut the second block of wood, then turn off the saw while holding the pipe in place until the blade stops. Once the slit has been made you can remove the wood blocks and trim the ends off the pipe to the length that you really need. Drive wedges into the pipe slit to open it up wide enough to fit over the the wood and then slide it onto the wood, removing the wedges as they become unnecessary. The spring tension in the pipe should hold it in place without any additional fasteners.


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