In article , "Vic Baron" wrote:

I ripped a 1" piece off a 17" piece of 4/4 hard maple. Looking at the
offcut, there were burn marks on the left side ( the 1" offcut ) but the
main piece was as smooth as a whistle. Using a WWII thin kerf blade. Usually
have no problems. Only thing different is I used one of those Micro
splitters that stick in a zero clearance insert. Altho how it could burn on
the inside of the free piece is puzzling to me.

Misaligned splitter?

Any idea what could cause this. Only thing that occurs to me considering
where the burn marks are is that there were some internal stresses in the
wood that causes the offcut piece to press against the left side of the
blade.

That could be, too, but if it happens on other workpieces too, I think I'd be
looking for alignment issues (fence, splitter, or both).

--
Regards,
Doug Miller (alphageek at milmac dot com)

Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?