Fun old project but the technology has improved[0] since then.
Popular in:
2024 (189 points, 20 comments) https://news.ycombinator.com/item?id=42115243
2021 (113 points, 39 comments) https://news.ycombinator.com/item?id=27216452
Yeah, the user 'o4c' appears to be a bot that reposts things that have been previously popular.
Another 3D printed microscope https://github.com/TadPath/PUMA looks very interesting too.