first time veneering, good results, but
maple_geek
| Posted in General Discussion on
I veneered two panels last night and since it was my first time
dealing with veneer, I am very happy with the result. However, the
two 1/4″ ply panels ended up warped (I only veneered one side)….
I know beginer’s mistake…I am worried that I will end up with warped
doors when the stiles and rails are added around the panel. Is there
anything I can do to straighten the panels at this point? Is 1/4″ply
strong enough to warp a door with 1 1/4″ wide X 3/4″ thick solid
walnut?
Eric
Replies
The stiles and rails will straighten out the warp. As you now know, always veneer front n back. Good luck.
A standard trick for countering warp is to wet the concave side then put it out in the sun. The moisture will be drawn thru the board as it dries and the board will start to warp in the other direction. When it gets to where you want it, remove the board from the sunlite. This takes over the coarse of a few hours and obviously will work better in the summer. In the winter you can mimmick the sun with one of those really bright and hot halogen(?) lites.
Dan019
Dan,
The unequal stress caused by the glue and veneer being on one side only is the major cause of the problem not unequal drying although the panel may flatten out some when the moisture added by the glue dissipates. Your trick has limited use to temporarily flatten out cupped stock when working with solid wood but it doesn't apply to glued up panels.
The best solution would be to veneer the back and leave the clamps on for 24 hours so the panel will stay reasonably flat when the clamps are removed.
John W.
Dan,
John is absolutely right. Veneer the back. And, if you can, clamp it in a slight curve opposite its present warp. It should then assume a fairly flat condition, allowing you to assemble the frames.
VL
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