According to the author of Instructables under the nickname lexiwirth22, such a modified Rubik's cube is suitable for both blind and sighted people who want to learn how to assemble it blindly. And this will not work right away even for those who know how to collect it in the usual way. Of course, this idea is not new, and such cubes are issued, but it’s faster to find a regular one in the nearest kiosk or store and redo it.
Idea of this homemade simple as all ingenious. The master takes a new Rubik's cube:
Well, or collects an existing one. If only the blind will use it, then collecting is not necessary. You will also need bas-relief stickers of five different shapes, at least nine pieces of each shape:
If you have found the right amount of suitable bas-reliefs without an adhesive layer, they can be glued with glue. Here is the master glues all the planes of the cube ...
Except for one on which there will be no bas-reliefs:
Sighted people, whom the developer gave to try to collect the modified cube, noted one more advantage of it: even if it is not used blindly, due to the relief, it holds in hands better and does not slip out. I’ll add from myself that bas-reliefs printed on a 3D printer are also suitable. In this case, you can repeat one of the ready-made options available on sale: with geometric shapes and with braille. You can also cut geometric shapes, for example, from sheet plastic with a thickness of about 3 millimeters.