My question is: where's your fence? Probably a little tough ripping a
board with a mitre gauge? If the twist appears after the cut, I would have
to ask: is the board rising off the table the last couple of inches of
travel?

NB


"George" wrote in message
...
Poplar, as in Populus sp versus what's sold out east as poplar which is L
tulipifera, will twist, turn, squirm and burn when ripping, sometimes
without obvious signs in the piece.

However - if you can see areas of smooth, silky surface interspersed with
areas of roughness, or the surface of the wood changes reflectivity as you
change your point of view, you're much more likely to have problems.

If you have the heart of the wood very close, or in the piece, you're much
more likely to have problems.

If you look at the end and see annual rings closely spaced on part of the
board and more generous on the other, you might have "reaction" wood.

Get thee to a library and R Bruce Hoadley's _Understanding Wood_ for some
interesting observations on what happens to kilned wood.

NBon't use the miter gage to rip.

"Ricky Spartacus" wrote in message
om...
Hello, this is Tib0r again.

Here's a drawing of my twist formed from the cut.

http://autotails.tripod.com/saw/saw.gif

I can't figure out why it twists at the ends in the drawing. I need
help from those who have abilities to think in three dimensions.