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This simple mod allows the slide to be mounted to most cell phones, turning them into digital spectrometers.How-To
You need four floppy disk ( 3"1/2).
With a pince, modify springs to get arms parallel. Do it for each spring
with a candle ( or something else ) turn springs very hot ( red ), and quickly solder it on the slide. put glue on each spring ( ...
close the slide with the other part. Press it for 3 seconds.
take an old mouse pad and cut four parts ( 1cm x 4.5cm )
put one rubber part under spring. put glue. put the second part on it and press hardly for 5 seconds. do it again.
now you finish it ...
put a diffraction grating slide in front of it ( glue or other ).
you can use it on most cell phones
Now you can make this kind of picture
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