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3D printed enclosure prototype

A project log for Handheld VNIR Spectrometer

A small portable spectrometer that can be used in the field to collect spectral data.

adamAdam 04/24/2017 at 02:572 Comments

I finally got around to printing an enclosure for the spectrometer this weekend. To cut down in print time I removed most of the walls and will use aluminum sheeting instead. Depending on how that works out in the long run I may stick with it or switch to a fully plastic enclosure.

Spectrometer components. Both the grating base and the CCD hold are removable, for now. This allows me to rotate the grating to test out different configurations.

Hand for scale, its more handheld now than before. I plan on cutting down on the footprint in future versions by changing the placement of the CCD circuit and fixing the grating holder in place. Right now the grating holder is on a rotating circular base to allow for adjustments.

Grating, slit and CCD installed and illuminated with and LED flashlight.

Spectrometer walls. I cut these out of ~0.5mm aluminum sheeting and spray painted them black.

Enclosure with walls installed.

Assembled spectrometer, sans cover.

Next up I need to design a cover and drill a hole to allow for USB connection to the CCD controller.

Discussions

Adam wrote 04/24/2017 at 23:36 point

Thanks! Yeah I bought the aluminum sheet from a local hardware store. Something like this: http://www.homedepot.com/p/M-D-Building-Products-36-in-x-36-in-Plain-Aluminum-Sheet-in-Silver-57000/100351161

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esben rossel wrote 04/24/2017 at 16:42 point

That is very elegant. I'm slightly jealous I wasn't able to come up with an equally sexy and clever design. What is the thickness (and source) of the aluminium-sheets?
[I now see I didn't read the log properly, and my question(s) were already answered]

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