Eclipse Pinhole Mesh
Getting ready for the April 2024 eclipse. After watching this SmarterEveryDay episode, I starting looking for a printable pinhole mesh to view the crescent sun before and after totality. I couldn't find anything, so made this one in Blender. I printed several copies in red and green to pass out at the event so people can also see the Purkinje effect.
It's pretty simple and an easy print.