The design is not complete; it will require a diffraction grating, spray-painting the interior black, a collimating mask, an LED light source, and of course, a smartphone running http://spectralworkbench.org. Follow along at http://PublicLab.org.
Remember to come back and post what you've printed as Make.
It's good for the designer and the community (that means you)!
To post a Make, come back to this Thing and click Post a Make.
Or, you can use the Thingiverse Mobile app found on
and the Apple App Store.