An interesting project from RCLifeOn

[roon4660]

https://www.youtube.com/watch?v=oT7Nq9hM_HY&t=425s . He has other videos showing how he made it.

[Ender5r]

It is interesting. I've seen some of his videos before, like the ones about giant lithophanes. I found 2 things most interesting about this project:

1. he stuck with the ball bearing instead of creating a steel "torpedo" of his own design that would solve all the issues
   ;
2. he didn't even address the idea of "freezing" some of the designs so they could be mounted as a display. What about using flour as the medium, then spraying it with a resin fixative? I'm sure other options are available.

[roon4660]

So what do you think of IDEX? I know this is off topic.