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Clips for the next spectrometer, pt 2

by mathew | August 29, 2014 04:36 | 50 views | 3 comments | #11085 | 50 views | 3 comments | #11085 29 Aug 04:36

What I want to do

try out some clips I bought and figure how they fit in a new spectrometer design.

The clips

Screen_Shot_2014-08-28_at_9.26.38_PM.png

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My frontrunner favorite was the tie clip-- but it was wobbly and doesn't stay in place well. The joint at the clip is just not firm.

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The money clips were good. The longer, thinner black one was my favorite, and I expected as much.

Building a bench.

I painted one of the wider clips black, and cut small blocks of wood and painted them black. The big block for mounting the camera is 1cm x 1cm, and the ones for mounting the grating and slit are 1cm x 0.5cm

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Then I made a small baffle out of black aluminum foil. I got spectra, but they were a little blurry. I need to modify the slit to be wider, and perhaps adjust the angle relationship between slit and camera. Currently, the grating is at 45 degrees and the camera at 60.

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Conclusions

the long black clips are great, they stay in place, and combined with some black wooden blocks, would be perfect for attaching to the bench. I made the bench out of black foam board, it is alright, but a stiffer material would be better.


3 Comments

A new clip arrived in the mail-- it has two clip points and holds better. This is my favorite

Screen_Shot_2014-09-02_at_11.07.08_AM.png

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3D printable clips for each of the parts with block mounts built-in based on jspauld's money clip on thingiverse

clipstls.zip

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I converted to STLs from Sketchup MAKE using this tutorial and plugin: http://airwolf3d.com/wiki/how-to-convert-and-export-google-sketchup-skp-files-to-stl-for-3d-printing/

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