Never seen it done, but it should work OK, Make sure the sides are perfectly flat when you glue up the end joints. Are you using drawer guides? That will help strengthen across the mortised butt joint.
Herb
Herb
1st... are you doing box joints drawer sides to face and not finger joints???Would the ply to native timber joint be strong enough? I would join the two 'ends' using my domino jointer.
Any other solutions?
half lap it...using a reinforced butt joint -
Sometimes a picture is worth a couple hundred words...............How about the idea of cutting the fronts as usual but then taking a piece of the stock, cutting the fingers on the end, gluing it to the front and then cutting it flush to the back of the front after the glue is dried - you could cut the fingers in the stock, cut off a short piece and then cut the next set of fingers, repeat until you have 10 "stubs". Make the drawer complete out of the 14mm plywood and attach the fronts to them. This would also let you cut the dadoes for the carcass rails in the drawer sides as you want, and would also have the plus that the end of the dado wouldn't show. The alternative would be to cut strips the width of the finger joint and glue them into the spaces in the end of the drawer front, kind of tedious and fussy though.