Hi all,
I have built a 3D printable spectrograph, based on the Lowspec design.
If you are consider doing this too, feel free to take a look at my webpage where i have gathered my experiences building it, and the pros and cons of the design.
https://astrokemp.com/building-a-slit-spectroscope-3d-printed-lowspec-3-0/
Regards
Remco