We've been making and distributing Do-It-Yourself spectrometers since 2011, and have been through 4 major kit versions and hundreds of different community contributed modifications, new versions, changes, and more. As a community we've gotten really good at helping people build a spectrometer, but we need to do a huge amount more to support more advanced work, more rigorous and consistent experiments, and more consistent and better data collection.
Order a kit online at https://store.publiclab.org/collections/spectrometry
For the numbers, we've shipped thousands of spectrometry kits, and over 12,000 people have uploaded spectra to our open source online database, Spectral Workbench. That database now includes over 100,000 spectra:
Now we're ready to take this to the next level with a better design that incorporates a vast amount of input and ideas from this huge contributor community.
The new 4.0 Desktop Spectrometry Kit is made of... Legos! We're calling it the Lego Spectrometer.
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/43IqCTHE7Iz