Hello everyone,
I just wanted to share my DIY project of a 3D Printed Color Nipkow Display here. It's not actually a receiver for NBTV signals (just a display), but I thought it might be interesting anyway.
Since a long time I wanted to create a mechanical Nipkow display based on Arduino which can be easily reproduced without complex mechanical machining. So I decided to design and 3d-print all necessary components - including the Nipkow disk itself. The project is based around the Arduino Mega and I published everything for download in case someone is interested (see links below).
Perhaps an interesting detail is that I used a color RGB LED (6 bits per channel) instead of a monochrome light source which most of the projects have I saw. The disk in this project produces an 32x32 pixel image at RGB666 color depth. It can achive 25-30fps max framerate, so enough for stable and flicker-free images. The relatively high color-depth and frame-rate improves the image quality.
Here is a video including some impressions of moving 32-line color pictures and the build instructions on YouTube :
https://www.youtube.com/watch?v=LmISP_fAAws&t=2s
A detailed description of the project including the BOM and software can be found on my hackster project page :
https://www.hackster.io/mac70/3d-printed-color-nipkow-display-380c33
Let me know what you think / happy to answer any questions
Mac70