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Routerman P. Warner
 
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Default slot cutters, are more flutes better?

In my view, more flutes will not reduce tearout nor do much for
efficiency.
All wings on the slotter should be on the same circle. Oddly, many
cutters, when viewed in high speed strobe photos, show that only one
flute is doing the cutting no matter how many there are!
More on tearout at http://www.patwarner.com/tearout.html
************************************************** **********************
While cutting some 1/4 dados in 9 ply 1/2" birch plywood for drawers,
I experienced excessive splintering of many of the pieces. Especially
on the bottom support of the dado.

I ended up feeding backwards on the router table and this helped quite
a large amount. Making smaller passes in opposite rotation direction
did not make a difference.

My cutter only has 2 flutes, do the 3 and 4 flute cutters stagger
their distance from the center or just come by more often causing a
less tramatic impact on the wood.

Thanks

Alan

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