This housing holds the sensor from a Microsoft HD-6000 webcam. The 2" nosepiece fits into a telescope. 3 micrometers refers to the pixel spacing on this webcam. Useful as a planetary cam, or print a 2" - EF adapter to use on a Canon lens for a guide camera (see https://www.thingiverse.com/thing:3337856).
For a more in depth description, please see https://gerritsendesign.wordpress.com/2019/01/05/telescope-mount-diy-tracker-v3/ .
2019-03-07: There are now two versions included: a 1" long tapered nosepiece and (per Baelyn's request) a 1.5" long straight nosepiece.
- Disassemble HD-6000 webcam. Keep the two sensor-mounting screws!
- Use those screws to mount the webcam on the body of this housing
- Mount the cover onto the housing using 3 or 6 M6 x 10mm screws. 8 - 12mm long screws would also work.
NOTE - PLA can transmit a small amount of light. If you use a low % infill, then paint the inside of the housing to prevent light transmission!