Spectrograph / Spectroscope (LOWSPEC)

thingiverse

UPDATE: 2 January 2020 LOWSPEC 3.0 This version features a significantly improved slit holder that guarantees maximum utilization of the entire slit length. It's now incredibly easy to switch between different gratings thanks to a redesigned grating holder system that utilizes magnets: https://www.youtube.com/watch?v=h4ihnS_naTo https://www.youtube.com/watch?v=T32eXb0y9zA Unfortunately, this update also necessitated changes to the main body, focussing unit, and guide platform. The good news is that current users can reuse all optical components, including the guide pick-off mirror, guide lens holder, main mirror holder, and collimator holder. The files for the older LOWSPEC 2.0 are still available in the file LOWSPEC_2.0_(old).zip ================================================================== A spectrograph enables you to analyze light, and attaching it to a telescope allows you to discover all sorts of things about the stars. In fact, almost everything we know about the universe has been obtained through spectroscopy! This field of science is becoming increasingly popular among amateur astronomers. A commercial spectrograph, however, will cost you €2000 or more. That's why I decided to build one using a 3D printer. Of course, you'll need to purchase the optical components (slit, lenses, mirrors, and grating). This will cost around €600. That's a huge difference compared to a commercial spectrograph. This spectrograph is designed for f/10 telescopes. I don't have in-depth knowledge of optics. If you can improve this design (source files are included), please let me know. Even better, share it with the rest of the world! Best regards, Paul Gerlach