Replies

1. 
   LeeGrinding1 | Jan 05, 2003 05:55pm | #1

   Your wood is either taking in moisture or, more likely this time of year, giving off moisture. The chances are good that the leaf will return to flat once equillibrium is reached throughout the piece. To avoid this in the future store pieces so that air can get to both faces. For now you can moisten the cupped side (the inside of the cup) or flip it over and wait.

   Did you have the pieces stacked and the one that cupped was the top one? This is very common.

   Lee

   Lee Grindinger

   Furniture Carver

1. 
   splinter | Jan 05, 2003 09:43pm | #2

   Thanks,

   I did have the leaf on top of the table.  I will give your suggestion a try right now.

   Thanks again,   Splinter

2. 
   wrick2003 | Jan 06, 2003 01:08am | #3

   norm did this fix a couple of years ago on his show:

   saw a  pretty deep kerf the length of the board at the apex of the radius on the concave side.

   saw and glue in  a wedge shaped shim to run the length of the board.

   this pushes everything back into the correct plane. it's like taking the crown out of a stud.

     

1. 
   splinter | Jan 12, 2003 09:19pm | #5

   I don't think I want to saw a kerf in the top of my table.

   Thanks Splinter

   Edited 1/12/2003 1:24:29 PM ET by splinter

3. 
   DouglasABaker | Jan 06, 2003 06:16am | #4

   Same thing happened to me on some raised panels - I made the mistake of leaving them flat instead of vertical, and as indicated previously, the "up" side lost moisture, and the other side didn't, causing a cup.

   If you don't have luck just exposing the "down" side (which you may not since it is very dry out and there may not be enough left in it to remove the cup), try putting the piece (in a concave fashion) on top of a very slightly damp paper towel.  Monitor it closely, as it will absorb the water quickly.  Take it off the paper towel when it has gone a little bit past flat (ie. cupped the other way), and then stand it vertically.  It should return to flat, or at least close.

   This may require a couple of attempts to get it right - seal the wood as soon as possible after you get it flat...

   Doug

1. 
   splinter | Jan 12, 2003 09:23pm | #6

   Doug,

   I might try clamping it between some 2x4's when its flat.

   Thanks Splinter