3D Printable Fiber Spectrometer Kit


3D print and build a scientific fiber spectrometer device.

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3D print a real scientific instrument. The spectrometer is a scientific instrument used to separate and measure components of light. Spectrometers are used in astronomy and chemistry for their capability to determine chemical composition of materials. Or it can help you to determine the spectrum of a lamp, an LED or even a laser. In visible light a spectrometer can separate white light and measure individual bands of color, called a spectrum (rainbow pattern).

This fully 3D printed fiber spectrometer is easy to build and functional instrument. The optical fiber guides the light into the spectrometer where the wavelengths of the light are separated by a diffraction grating. A tiny USB camera sends an image of the spectrum to a computer or even a smart phone (via OTG cable). On the computer you can see the rainbow pattern and analyze the intensity of light as a function of wavelength with an online-software.

Use your 3D printer or a 3D printing service to print the open source housing of the spectrometer. The carefully prepared “3D fiber spectrometer kit” includes all the other components needed as well as a detailed instruction on how to build the spectrometer. No soldering, no screwing, no gluing, everything clips together nicely.

Once build, you can start using the spectrometer to explore light sources arround you. This is scientifically called optical emission spectrometry.
You can then even extend your scientific instrument by 3D printing more accessories. 3D print the cuvette holder and you can even do optical absorption spectrometry and analyse the color of liquids. Optical clear cuvettes are also included in the kit.

The new Version 2 has an extended range from visible to infrared spectrum. The new camera allows fixed exposure mode for absolute measurements. And includes an extra infrared LED.

Included in the kit

– USB camera, compatible with mac, pc and linux
– USB cable
– Optical fiber (light guide)
– Diffraction grating
– Optical Slit
– Cuvettes 2x
– Light emitting Diodes 2x (white & color changing)
– Step-by-stepĀ  instructions
– Online spectrometer software

CASING NOT INCLUDED! You print the parts.
Needed: 3D printer, 0.4mm nozzle, 0.16 or 0.2 mm layer height, PLA, black
If you do not have access to a 3D printer you can order the 3D printed parts online from imaterialise, PCBWay or shapeways.

Order you kit now and start 3D printing your parts (download files here).

All files designed by GaudiLabs, published under creative commons license.




Additional information

FREE SHIPPING worldwide.

Ships with Swiss Priority Mail. Will dispatch within one week from order.


Version 1 – Visible Spectrum, Version 2 – Visible and Infrared Spectrum