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<img style="float:right;margin:10px;" src="https://i.publiclab.org/system/images/photos/000/001/334/medium/smartphone-spec-overview.png" />

###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. ...magic...

<img style="float:right;margin:10px;" src="https://i.publiclab.org/system/images/photos/000/001/331/medium/liner-taping.png" />


![IMG_20130827_164804.jpg](https://i.publiclab.org/system/images/photos/000/001/330/medium/IMG_20130827_164804.jpg)

<b>Sketchup model:</b> <a href="https://i.publiclab.org/system/images/photos/000/001/335/original/smartphone-spec-overview.skp"><i class="icon icon-file"></i> smartphone-spec-overview.skp</a>


##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)
*<s>protective film</s> _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/)

<a href="https://www.flickr.com/photos/14397636@N07/9627651738/" title="backpack spectrometer assembly take 2 by mathew.lippincott, on Flickr"><img src="https://farm8.staticflickr.com/7352/9627651738_6149103bc6.jpg" width="500" height="375" alt="backpack spectrometer assembly take 2"></a>


![spec.gif](https://i.publiclab.org/system/images/photos/000/001/336/medium/spec.gif)


###Adhesive options

Here's a list of other adhesives and tape strips which may be helpful in assembling and mounting the spectrometer. Some may be shipped in the kits:

* Tape strips are sold for costumes and wigs: http://www.amazon.com/Bonding-Double-Tape-Walker-Straight/dp/B00D7LA162/
* 3M's super strong 300LSE in letter sheets, ~$12 each: http://www.amazon.com/9474LE-super-strong-double-sided-adhesive-transfer/dp/B00CCGK31G/
* Scrapbooking tape strips: http://www.amazon.com/Double-sided-adhesive-mounts-12-pack/dp/B00D5WDZXO/ (hard to find but good size -- big lots available on ebay: http://www.ebay.com/itm/New-72-Packs-Scrapbook-Double-Sided-Adhesive-Strips-/321157403796 is 3600 strips for $65, or 2c per strip)