Rueda caleidoscópio requires an even number of couples, preferably not less than 8 couples, and you need fairly experienced Rueda dancers.
Rueda caleidescopio will result in a few more new positions, similar to the radios (spokes) positions in rueda torno: llanta radios (llanta spokes) and radios largas (long spokes).
This universe of variations can easily be associated with a caleidescope, hence the name. It requires an even number of couples, preferably not less than 8 couples, and you need fairly experienced Rueda dancers.
It is a bit hard to visualise just from text and a diagram, so here is a couple of videos from Sassan Ito, leading his Berlin Rueda group in Rueda caleidescópio:
This is not a very fixed structure, it is more of a frame for exploring new variations of combining several of the previously developed Rueda structures.
Here is also a video from a rueda torno workshop by Jaroslav Hluch at SalsaNor’s Rueda Congress 2016 in Trondheim, where Jaro is also including elements from Rueda caleidoscópio:
If you want to check if you got it all right, here is an illustration of the transitions between rueda de casino, rueda por fuera, rueda llanta and rueda mixta used in Jaro’s video: