This thing is a 3D-printed front for the C270 Logitech Webcam. It converts it for astrophotography, to be used with a telescope with standard 1.25" eyepiece.

Compared to the others, it uses no glue or additional hardware, and is very easy to print without support. It also features an inner wall to shield the sensor. Preferably use black PLA and don't forget to desolder or disable the LED of the Webcam.

I use it with AstroDMX on Linux.

I included an OpenSCAD cap (from https://www.thingiverse.com/thing:3134224) and the source SolidWorks files.

I dedicate this work to the public domain.