|Forum topic by harriw||posted 12-13-2012 12:36 AM||870 views||0 times favorited||8 replies|
12-13-2012 12:36 AM
I just learned something the hard way that I’m sure most of you already knew. But I thought it was interesting so I figured I’d share :)
I’m ripping some 1” thick strip of maple around 3 1/2 feet long. One piece was going to become strips 2.5” and 1” thick. I looked closely at the grain, and saw it was fairly straight for most of the board, then curled around quite a bit on the last inch. I figured making the cut there would make for 2 uniform, but uniquely different end grains for the board.
Well, I went ahead and made my cut, and the 2.5” piece looks great. But when I picked up what was left to shave it down to 1”, I was surprised to find it’s now badly curved! Almost 1/4” off in the center of the board.
I should note here that all the lumber was jointed, and I made sure I ran the opposing edge through the saw to make sure all the boards were true and parallel on both edges before I started ripping.
I think what happened is that the straight grain was keeping it in line. As soon as I removed it, the curly grain on the side bent the way it naturally wanted to, now that the straight grain “next door” was no longer attached.
Oh well – fortunately I have enough extra to make a new 1” strip. But I’ll definitely be on the look-out for that in the future! I never would have expected the board to move out of true simply by removing part of it :)
-- Bill - Western NY