After a few years, we're returning to one of our oldest kits to update and improve it, building on lots of community-contributed ideas, improvements, and refinements. This page collects resources, questions and activities related to the design. **Already assembled your Papercraft Spectrometer? Visit [SpectralWorkbench.org](SpectralWorkbench.org) to get started on recording and analyzing spectra.** ## Quick start To get started assembling your spectrometer, try: Assemble your spectrometer or Get a kit The first link also includes the design files for printing. ## Intro This introductory kit has been co-designed by [hundreds of contributors](/contributors/spectrometry) as an entry point to Public Lab's [collection of Do-It-Yourself spectrometry projects](/wiki/spectrometry). Read about more on that page about what spectrometry is for, what we can do, and what its limitations are. **** ## Design goals Our goals were: - more rigid/robust - printable on non-black paper - easier to cut out with just scissors - put more of the instructions on the object itself, [like on the Antikythera Mechanism](https://publiclab.org/notes/warren/05-04-2016/tweaks-to-foldable-mini-spectrometer-design) Keep in mind -- this is the "introductory" design intended to onboard newcomers to the project, so we're trying to make it as easy as possible to build. Once you've made this, you're ready to move on to more complex projects, like [scanning, sample preparation, and more robust designs](/wiki/spectrometry). We haven't gotten all the way there on every goal -- we'd hoped to [make a version that required no glue](https://www.instagram.com/p/BTg-ixkguxq/) -- just locking tabs -- but we just couldn't keep it small enough to be printed on a folded-in-half letter sheet. See [this note](https://publiclab.org/notes/warren/05-04-2016/tweaks-to-foldable-mini-spectrometer-design), [this](https://publiclab.org/notes/warren/07-06-2017/scissors-only-build-of-wider-papercraft-spectrometer), and [some of these photos](https://www.instagram.com/explore/tags/papercraftspec/) for my process of integrating all these changes, and see [this page](https://publiclab.org/contributors/spectrometry) for some of the many many people who've contributed. See the [previous version of this kit here](/foldable-spec). [](https://publiclab.org/system/images/photos/000/022/676/original/Screenshot_2017-11-30_at_12.50.12_PM.png) **** ## Activities [activities:papercraft-spec] ## Questions This section is for questions about the **Papercraft and Foldable Spectrometry Kits**, specifically. For questions about spectrometry in general, [see this FAQ](/wiki/spectrometry#Frequently+Asked+Questions). [questions:foldable-spec] **** ## Get involved in the next revision Have you made improvements to the kit? Share them as [an upgrade](#Upgrades) and we may get in touch to integrate your changes into the kit itself. **** ## Challenges Once you've gotten a solid footing with some of the above activities, try tackling one of these unsolved challenges to advance our collaborative work: [questions:spectrometry-challenge] ### Upgrades Have you added to your starter kit, improved it, redesigned it, or solved one of the above challenges? Show others how to take it to the next level by posting a build guide here: [upgrades:foldable-spec] Add your upgrade guide here Request or propose an upgrade _Upgrades should include a parts list and a step-by-step construction guide with photo documentation. See an example._ ## Limitations and next steps The resolution and stability (ability to hold a [wavelength calibration](/wiki/spectral-workbench-calibration)) of the spectrometer depend on how carefully you construct and store it. This kit is designed to be **easy to assemble**, and is not focused on precision or highly consistent measurements; it’s made of paper, and will crush if you put it in your pocket -- but it can be made out of easy-to-find materials and assembled in ~15 minutes. For a more rigid, robust device intended for more advanced work, check out the [Desktop Spectrometry Starter Kit](https://publiclab.org/wiki/desktop-spectrometry-kit-3-0). To improve it, see the related [upgrades](#Upgrades) and feel free to post your own improvements there. Most digital cameras can record light in the visible range, ~400-700 nanometers, so this determines the range of your device. The resolution is mainly limited by the resolution of the camera (and its focus!) and less by the narrowness of the slit -- but measurements should be possible at better than 3 nanometers per pixel. ## Photos [](https://publiclab.org/system/images/photos/000/022/685/original/OI000118.jpg) [](https://publiclab.org/system/images/photos/000/022/683/original/IMG_20171130_141345.jpg) [](https://publiclab.org/system/images/photos/000/022/684/original/OI000117.jpg) [](https://publiclab.org/system/images/photos/000/022/686/original/OI000113.jpg) [](https://publiclab.org/system/images/photos/000/022/687/original/OI000109.jpg) [](https://publiclab.org/system/images/photos/000/022/688/original/IMG_20170706_151152_456.jpg) [](https://publiclab.org/system/images/photos/000/022/689/original/IMG_20170706_150656_876.jpg) ...
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| taqiyaviiid | "Hi sir!! I have read your experiment. I actually want to know how do you remove the cuticle with specific process (ingredients and dosages) on pro..." | Read more » | 3 months ago | |||
| vivek14 | "hello " | Read more » | about 1 year ago | |||
| vivek14 | " hello there is no iphone app . sir your question is very useful for all .I am just looking khanapara teer . " | Read more » | about 1 year ago | |||
| amocorro | "@deeptalaxmibharadwaj wow! Thanks for documenting your concerns and showing the Public Lab community your process. I love that you went outside you..." | Read more » | over 3 years ago | |||
| G33K4P00RV4 | "Thanks! " | Read more » | over 6 years ago | |||
| warren | "No problem -- i guess, so for example, I'm not sure if red ink shows up on black paper, but we use colored ink (red, blue) on brown paper when we m..." | Read more » | over 6 years ago | |||
| G33K4P00RV4 | "Yes, I was referring to the spectrometer. Non black ink on non black paper. Sorry if I was a little unspecific. This is my first time doing anythin..." | Read more » | over 6 years ago | |||
| warren | "I bet this is in reference to the papercraft spectrometer: http://publiclab.org/paper-spec But do you mean using black paper or using non black in..." | Read more » | over 6 years ago | |||
| stef | "Depends what you're printing. Can you be more specific? " | Read more » | over 6 years ago | |||
| warren | "We're starting to compile a lot of different sensors and testing methods here -- could be of help! https://publiclab.org/wiki/water-sensors " | Read more » | over 6 years ago | |||
| xose | "Hi there! I've been trying to use the spectralworkbench with IOS with no success using Browser app. That web browser is suupposed to use WebRTC but..." | Read more » | over 7 years ago | |||
| warren | "On iOS, there is the Bowser browser, which I've heard has the correct features to work with Spectral Workbench live recording, but I've never been ..." | Read more » | over 7 years ago | |||
| liz | "There is no iPhone app, or any app, actually! To capture a spectrum with iPhone, use your camera to take a still picture of the spectra and then up..." | Read more » | over 7 years ago | |||
| liz | "Hi @CanfieldC ! It's great to meet you. I was the one who organized what i now understand to be your students' work into https://publiclab.org/note..." | Read more » | over 7 years ago | |||
| fieldlab | "Yes, a good question @warren - possibly not, and I'm not sure how to find out, apart from buying a whole lot of cheap cell phones. I'll keep thinki..." | Read more » | almost 8 years ago | |||
| warren | "Hmm, interesting! Would a cell phone screen be a really consistent spectrum? I wonder how much variability there is in manufacturing. " | Read more » | almost 8 years ago | |||
| fieldlab | "Thanks for your reply @warren. There is pretty good discussion going on about this concept on hackaday for Pb detection in drinking water a la Flin..." | Read more » | almost 8 years ago | |||
| warren | "Hmm, interesting. I don't know much about paper assays, but this kit available online says: Smallest Increment: Steps: 0, 0.15, 0.3, 1, 1.5, 3 ppm..." | Read more » | almost 8 years ago | |||
| mathew | "the cutter works great! I went through similar initial issues, setting the blade lower and not seeing it cut all the way through. I settled on the..." | Read more » | over 8 years ago | |||
| warren | "Cuvette holder! Learning that it's much easier if no parts are left behind on the cutting mat. It makes for much faster turnaround of multiple cuts..." | Read more » | over 8 years ago | |||
| warren | "Tried cutting plastic - the kind that folders are sometimes made of (turns white when creased) and it works ok-- I think three cuts instead of two ..." | Read more » | over 8 years ago | |||
| warren | "More cuts! " | Read more » | over 8 years ago | |||
| mathew | "I love their HTML 5 video stuff in there. really nice. The fold-up GIF is also stellar. " | Read more » | over 9 years ago | |||
| warren | "Looks amazing. I recently saw some neat ideas for cardboard construction from Nadya Peek and James Coleman, and also was just impressed at their do..." | Read more » | over 9 years ago |