About this 3D model

This is a backlighting box for the Custom QR Code generator. It uses 9 x 3mm white LEDs. Used it at SoliDoodle's 3D Printing Expo after-party. While it worked great in my lab, using my Android phone, with the AT&T supplied code scanner, I found out at the party that Apple's Code Scanner didn't read it. However, when I saw people scanning the code - unsuccessfully - I would just approach them and introduce myself and my product line... Better than a website link, many people remarked...