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Reply by Madmark2

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Posted on What table saw blade or bit do you recommend

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Madmark2

2663 posts in 1673 days


#1 posted 02-26-2021 01:39 AM

Combo blades are a compromise. They’ll do a decent but not perfect job on both rips and crosscuts.

That Freud LU83 is a favorite of mine. They leave a wavy bottom as you have found.

If an absolutely flat bottom is needed a router is called for.

For best results rough the dado with the saw. Cut it a little narrow and shallow. Perfect the dado with the router. Its more effort but will give a great looking join without chewing up bits. As always I suggest carbide.

I don’t go nuts that sometime the ply can be a little wavy. I cut for the thinnest, test fit & lightly sand the high spots to fit. Since the edge is in the middle of a dado it will never be seen.

FYI:
The diameter of the average human hair is about 0.003”. The 0.006” tooth height difference is literally the width of two hairs.

-- The hump with the stump and the pump!


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