4 ms·
This works with two, but you need third to make 3D-reflector. There is no elegant solution except cutting 90 degrees slices. And it does not fold easily.
by timonoko 2y ago
This works with two, but you need third to make 3D-reflector. There is no elegant solution except cutting 90 degrees slices. And it does not fold easily.
- ggm 2y agoslot 2 the way I described and then you only have to cut quarters for the 3rd disc. Making it demountable is about glueing tabs to hold things solid surely?
- timonoko 2y agoThe aim is to make it totally foldable and flat. For example: In life rafts they often have inflatable balloons, which have metallic foils inside in this 3D - configuration.