I need to out a corner piece of molding from 4 x 4 clear fir by cutting out a square along the lengthwise dimension. I’m looking for advice about the safest way to make this cut. I’m not artist, but if you can imagine looking at a cross-section of a 4 x 4, the cutout needs to look like the attached. Can I safely cut this with a table saw? It seems to me that as the second cut breaks the ‘square’ loose, the top of the other piece loses it’s support and might catch on the blade and get thrown backwards. Any advice?
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You're right about the potential for kick-back. There are two approaches. One is make this rabbet cut away from the fence. Therefore you'll be supported at the fence and down near the table close to the fence. This will be easier to support and there's no danger of the off-cut being thrown back.
But the safer approach is to not cut all the way through. This way the off-cut will still be attached by a 1/32" or so of wood. Take it off with your chisel and finish up the inside corner with a shoulder plane or chisel. Good luck. Gary
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