#####[buy one from our store ](http://store.publiclaboratory.org/collections/spectrometer-tools/products/public-lab-mobile-spectrometer-kit)##### #####Have a spectrometer already? [Get started with Spectralworkbench](/wiki/spectral-workbench-usage)##### ##Make your own## [Download 8.5" x 11" instructions](https://publiclab.org/sites/default/files/8.5x11mini-spec3.8.pdf) ##Photo Folding Steps## ##Illustrated Folding Steps## Cut out along the outer edge if not already cut out. Fold as indicated by the lines. Thinly dotted lines are folded down, dashed lines folded up. Except for the Diffraction grating on door, glue or tape all flaps down to the outside. To make a diffraction grating from a DVD-R, cu a square from the outer edge. The DVD has is two layers of plastic. Peel back the reflective layer, and cut a small square out of the transparent layer. Tape or glue down the DVD-R diffraction grating to the inside of the spectrometer so that the diffraction grating is vertical, producing a horizontal spectral rainbow. Then glue the door closed. Attach The spectrometer to a webcam with the aid of a box, to a phone, or to a computer. #[get started with Spectralworkbench](/wiki/spectral-workbench-usage)#