|Forum topic by jasoncarpentry||posted 09-01-2011 03:38 AM||1079 views||0 times favorited||2 replies|
09-01-2011 03:38 AM
About 2 months ago, I made a large cutting board for my daughter to use over one-half of her kitchen sink. Simple board: about 22” x 18” x 1 1/8” thick, made from alternating 3/4” wide strips of cherry & maple. I used Titebond II glue throughout, and finished it w/ a mixture of mineral oil & paraffin (both sides). I put “feet” on one side to hold it in place on the sink, and it’s supported on all four sides by the edges of the stainless-steel sink. She has used it constantly, getting only one side wet, and it’s never been submerged in water.
The first problem I noticed is that the board “grew” in a direction perpendicular to the strips. We realized this when the feet would no longer fit down into the sink. Simple fix: I just removed one of the feet and replaced it w/ another, putting it closer in. Problem solved, and now I know that boards grow!
The current problem is more serious. The board is starting to warp; it’s curling up in a direction perpendicular to the strips. My plan is to resaw the board into strips about 2-3” wide, run the pieces thru the planer, and square up all the edges. Then I’ll add new strips as needed to make up for kerf losses, and re-assemble it.
Will this prevent future warping? I have my doubts, since I’ll still have essentially the same type of board I started out with. The only new idea I have is to pre-drill the strips at each end, then align them by inserting metal rods 1/2” – 3/4” in diameter as I do the final glue-up. The rods would, of course, remain embedded in the board.
Does this make sense? And will it work?
-- Jim in Tennessee