###List of parts
* 3 injection molded plastic (ABS) parts
* 2 short screws
* 2 long screws
* black paper liner
* diffraction grating
* protective film
* precision printed slit
* jewelers screwdriver
###Instructions
1. Carefully pull out the grating without getting dust or fingerprints on it, and lay it ...
2. Place the double-sided tape on the interior of the molded plastic parts as shown
3.
4.
![IMG_20130827_164804.jpg](https://i.publiclab.org/system/images/photos/000/001/330/medium/IMG_20130827_164804.jpg)
Sketchup model: smartphone-spec-overview.skp
##Mathew's Assembly Run##
* 3 injection molded plastic (ABS) parts
* 2 short screws
* 2 long screws
* 1 short black paper liner (5cm x 4cm)
* 1 long black paper liner (5cm x 8cm)
* 6 5cm lengths of double-sided tape
* 1 5cm black foam tape
* diffraction grating (5cm x 4.4cm)
*protective film _I did without-- this extra step increases the chances of damaging the grating in order to protect it._
* precision printed slit
* jewelers screwdriver
* razor blade
[See full image set here](https://www.flickr.com/photos/14397636@N07/sets/72157635289590145/with/9627692282/)
![spec.gif](https://i.publiclab.org/system/images/photos/000/001/336/medium/spec.gif)