Public Lab Research note

3D Printed body for DIY Spectrometry Kit

by RTegelbeckers | February 25, 2014 19:22 25 Feb 19:22 | #10066 | #10066

I received a DIY Spectrometry Kit as part of a price on the 'Build My Lab' contest on instructables. As I have a 3D printer, I decided to design a 3D printed main body. The new design allows the replacement of the conduit box and wooden block by a purpose designed part. The resulting spectrometer provides a better fit for the camera and the card insert. It is also a bit more robust due to the provision of an integrated clamp for the USB cable, making it more suitable for carrying around. I published a new Instructable to show how I did it.

In the future I would like to design a separate stand, for using the spectrometer to analyse samples in standard cuvettes (square 10x10x45mm). Please, leave any comments or suggestions as this will all help to improve the final article!



This is a nice design, well thought out. Here is an x3g file for printing it on a MakerBot Replicator 1 with these settings:

  • PLA, right extruder, 200° C
  • 45° C build plate
  • 10% infill, 1 shell, 0.20 layer height
  • support on, no raft
  • 120 mm/sec print, 190 mm/sec travel
  • 250 layers, ~60 g, about 4.5 hours

If you plan to tap those bolt holes, one shell might not be enough.


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At least the bolt holes for securing the lid and the holes for the cable clamp need tapping, so more shells would be recommended. On my own printer, I managed to print without support material.

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Good point. Here is a version with 4 shells and no support.


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