|Forum topic by woodcox||posted 06-29-2015 06:01 PM||885 views||0 times favorited||8 replies|
06-29-2015 06:01 PM
I am building a couple cases from this 3/4”-7 core ply(5-solid wood core, 2-veneer). Plans call for five hard maple drawer runners dadoed in at a 1/4” depth. Upon machining the 27” tall, 20” deep side panels they developed an outside bow around a 1/16” as seen in the pic. Runners have been glued in at this point and there will be hardwood edging applied to the front with a 1/4” ply back rabbeted in flush. I have a couple ideas to try and correct this bow to bring them back to flat if possible.
1. Make two 1/4” deep saw kerfs at about 9” and 18” on the OUTSIDE of the cases to try and relieve the core stress and fill them back in with solid wood.
2. Same as above except 1/2” dados to be filled back in flush to the outside of the panels.
3. Remove the rabbets for the back panel to have a 3/4” ply back not flush with back of the cases. I have doubt in this one as it should bring the back flat but the front would only have the hard wood edging trying to keep the front sides flat.
4. Assemble as is. Build drawers to possibly find room inside between the drawers near the center for one or two horizontal braces to push the side panels back flat.
This is a shop storage project and if I go with #1 or #2, I really don’t care if the filled in kerfs or dados are seen. This is my first time machining ply to this extent. I also realize I should have selected a higher quality ply for this project. Any ideas or comments would be greatly appreciated.
-- "My god has more wood than your god" ... G. Carlin.