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August 3, 2017 AT 4:00 am

Spectrograph / Spectroscope by Paul Gerlach #3DPrinting #3DThursday

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PJHBGerlach shared this project on Thingiverse!

A spectrograph lets you analyse light. Attaching it to a telescope enables you to discover all sorts of things about the stars. In fact, almost all we know about the universe has been obtained through spectroscopy!

This field of science is becoming more and more popular amongst amateur astronomers. A commercial spectrograph however will set you back € 2000 or more!

That’s why I decided to build one with a 3D printer. Of course, you’ll have to buy the optical components (slit, lenses, mirrors and grating) . But that will ‘only’ cost you about € 500. Which is a huge difference compared with a commercial spectrograph. This spectrograph is designed for telecopes which are f/8 or slower.

This is still a work-in-process project. I’ve included a STEP file of the whole design so you can change or improve upon it. Later on I will include more information on how to assemble the instrument. This will be done as a series of images that I will add in the coming days.

See more!


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