This page is under construction.

At long last, we've started shipping the Smartphone Spectrometer, formerly called the "Backpack Spectrometer" -- and you can order a kit today (shipping begins by the end of the month): > http://store.publiclab.org/products/smartphone-spectrometer Read more about the new kit here: http://publiclab.org/notes/warren/11-15-2013/introducing-the-public-lab-smartphone-spectrometer

The final instructions (as sent to press) are here:

smartphone-spec-instructions-p2.pdf

###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 ###Design files This being open hardware (CERN OHL 1.1), here are the files: PublicLaboratory_Mobile_Spectrometer_v31.zip These are also on Thingiverse: http://www.thingiverse.com/thing:116610 And here is a more 3D-printable version by Brad Dudenhoffer: http://www.thingiverse.com/thing:125428 Order a 3D print on Shapeways here: https://www.shapeways.com/model/976427/public-lab-smartphone-spectrometer.html ###Instructions ![spec-instructions-1.png](https://i.publiclab.org/system/images/photos/000/001/722/original/spec-instructions-1.png) ![spectrometer-instructions-p2-good.png](https://i.publiclab.org/system/images/photos/000/001/724/original/spectrometer-instructions-p2-good.png) **** 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) ###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/ ** these are an excellent option. 3M sells [24x36" sheets](http://multimedia.3m.com/mws/mediawebserver?mwsId=66666UF6EVsSyXTtlxTV5XM2EVtQEVs6EVs6EVs6E666666--) somewhere. we can save users any trimming through cutting to 6mm wide-- the width of the edges of the mountplate. one sheet = 300 30cm strips 6mm wide, giving each user 6 5cm pieces they can cut to length with their razor. Then there's no tape trimming to do when attaching. * 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) ###Photos Photos of the assembly process. [![IMG_1052.JPG](https://i.publiclab.org/system/images/photos/000/003/306/medium/IMG_1052.JPG)](https://i.publiclab.org/system/images/photos/000/003/306/original/IMG_1052.JPG) [![IMG_1043.JPG](https://i.publiclab.org/system/images/photos/000/003/307/medium/IMG_1043.JPG)](https://i.publiclab.org/system/images/photos/000/003/307/original/IMG_1043.JPG) [![IMG_1053.JPG](https://i.publiclab.org/system/images/photos/000/003/308/medium/IMG_1053.JPG)](https://i.publiclab.org/system/images/photos/000/003/308/original/IMG_1053.JPG) [![IMG_1054.JPG](https://i.publiclab.org/system/images/photos/000/003/309/medium/IMG_1054.JPG)](https://i.publiclab.org/system/images/photos/000/003/309/original/IMG_1054.JPG) [![IMG_1044.JPG](https://i.publiclab.org/system/images/photos/000/003/310/medium/IMG_1044.JPG)](https://i.publiclab.org/system/images/photos/000/003/310/original/IMG_1044.JPG) [![IMG_1046.JPG](https://i.publiclab.org/system/images/photos/000/003/311/medium/IMG_1046.JPG)](https://i.publiclab.org/system/images/photos/000/003/311/original/IMG_1046.JPG) [![IMG_1045.JPG](https://i.publiclab.org/system/images/photos/000/003/312/medium/IMG_1045.JPG)](https://i.publiclab.org/system/images/photos/000/003/312/original/IMG_1045.JPG) [![IMG_1048.JPG](https://i.publiclab.org/system/images/photos/000/003/313/medium/IMG_1048.JPG)](https://i.publiclab.org/system/images/photos/000/003/313/original/IMG_1048.JPG) [![IMG_1056.JPG](https://i.publiclab.org/system/images/photos/000/003/314/medium/IMG_1056.JPG)](https://i.publiclab.org/system/images/photos/000/003/314/original/IMG_1056.JPG)