About this 3D model

I made this little case for my Arduino with its KeypadShield from Adafruit including a compartment for a 9V Battery. I didn´t finish the print of the Top Case but the Bottom fits already very nice. It is intented to be mounted/assembled with M3 Screws. Maybe it is also usefull for someone else. If there should be some trouble with it let me know. I will change the desing then. ToDo: Make a nice Buttonset / last button UPDATE 26.09.13: Added the missing USB cutout in the topshell and realigned the holes for the buttons. On the bottomshell i fixed the depth of the two right mountingholes for the Arduino. All Holes should be able the accept M3x6 screws now. UPDATE: 29.09.13: Added the Keypad for the "work" buttons. Resetbutton is still missing. Redesigned the Topshell to accept the Keymat. I just fixed the Keymat in the Topcase by melting the fixpoints with the solderiron.