I really like those boxes! :thumbsup: Your corner splines look awesome, nice job. What kind of hinge are you using? I'd like to see a close up of how you mortised in the hinge if you could. Pretty please :yes:
The hinges I used are from Lee Valley
00D8066 102mm x 17mm RE Brass Piano Hinge
91Z0103 100-#1 1/2" Flat Brass Screw
My advice as always is "Build A Jig". This jig is just 2 pieces of scrap. One piece of ply for the router to ride on, and another to act as a stop inside the box. Clamp it to the box and rout away. I used a 1/2" bearing mounted hinge mortising bit, because the hinge end has a 1/2" radius. The router bit depth is the thickness of the hinge at the pivot, since the lid is flush mounted.
This pic shows the jig sitting on a box. The cutout matches the length of the hinge and is centered on the jig.
This pic shows the hinge ready to accept the lid.
Spacer taped between the leaves (piece of walnut spline) and dbl-sided tape to catch the lid. Place box front edge on bench and sneak the lid onto the tape. Press hard; wait 2-3 minutes for the tape to set; open and drill holes.
Finished job. 2 of these hinges were shorter than the rest,,,,and this is one of those! :furious: