Learned a kewl way to build a wing servo box from Troy.

1. Build surround out of 1/4" squarebalsa sticks.
2. Add 1/8" Aircraft ply plates on bottom of surround.
3. Use dremelwith cutting bitto router center depth to accomodate your servo.
4. Use 1/4" router bit on dremel to provide hole to accomodate the surround. Make this less than 1/4" deep because wing surface is curved, you need some of surround prodruding to sand flush
5. Route top and bottom of hole to accomodate the ply servo mounting plates
6. Glue in place with wood glue. Coat foam inside box with glue as well as surface and sides to accomodate the mount.
7. Set aside for 4+ hours to dry (or whatever is appropriate for your glue)
8. Sand flush with wing.