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Reply by therealSteveN

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Posted on Question re best way to rip 1/2" L shape maple?

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therealSteveN

6991 posts in 1546 days


#1 posted 05-13-2020 07:07 PM

On a TS I would use a different blade. There are 3 choices I am aware of, one of which you may have.

Freud has their Dado set for box joints which gives a perfect 1/4” or 3/8” kerf with a 2 blade stack, has FTG teeth so nice flat bottoms.

https://www.freudtools.com/products/SBOX8

A standard good quality dado stack set to 1/4”

https://www.infinitytools.com/saw-blades-accessories/table-saw/table-saw-blades/dado-saw-blades/dadonator-stacked-dado-blade-set-with-5-8-bore

Or a single blade with a FTG that gives a dead flat bottom, and happens to be .250 wide at the cut. I have the .250 version of this flat top grind blade, and it’s a thing of beauty for quickly running in drawer bottoms, clear clean cutouts of exactly .250 such as what you want, use a sac fence so you don’t spoil your saws fence. You don’t bury, but still that close to the fence, you want a buffer. Plus this blade is magical for TS lock joints like a dado rabbet.

https://www.infinitytools.com/saw-blades-accessories/table-saw/table-saw-blades/flat-top-saw-blades/8-flat-top-blades

The problem with having an exposed edge and using a standard blade is it likely has an ATB or otherwise tilted profile, so you only partially remove the last bits of wood from your multi pass, you either get wedges, or bats ears, but not flat bottoms, so from a show side it looks really gappy.

Plus that is also why Steve asked if you had a router table with a rabbet, or even a straight cut bit would clean out your track, and leave a flat bottom. Thing is it’s a one pass on the TS, and usually a multi pass on the router table to get the needed depth.

I realize on the saw blades unless you already have a good flat bottom blade set of dado blades, you would likely have to buy something. I like the TS for faster cutouts like you are doing, and I do locking joinery on the TS pretty often, so I own all 3 of the blades I spoke of. I use them often too. If you don’t see yourself doing box joints, and making rabbet cuts like this often, then possibly the router would be best bet.

-- Think safe, be safe


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