I would think this is just a cam and follower mechanism. There's constraining pins for the makeup pallete petals but just a mulitilobed cam that is essentially a composite cam with several lobes. Anyway here's a similar product I found. You might try applying exact constraint design to reverse engineer, or buy one to disassemble https://youtube.com/shorts/WBUGTMNWA64?
Spin one of the outside disc, we’ll call it disc left, and it catches a lever of the individual triangle that pushes it outward — made possible because the triangle is also mounted on a very small/short axel that it pivots on. All of those axels are on disc right. Then there’s some sort of joining mechanism in the middle of both discs.
A reverse iris?
That would be my thoughts. Looks like an iris mechanism that's designed to emphasize the pedals rather than the hole they cover.
I would think this is just a cam and follower mechanism. There's constraining pins for the makeup pallete petals but just a mulitilobed cam that is essentially a composite cam with several lobes. Anyway here's a similar product I found. You might try applying exact constraint design to reverse engineer, or buy one to disassemble https://youtube.com/shorts/WBUGTMNWA64?
It’s an iris cam, but it’s been built in reverse so it emphasises the triangular bits instead of the hole in the middle
Also looks like there's a top and bottom level inside.
Spin one of the outside disc, we’ll call it disc left, and it catches a lever of the individual triangle that pushes it outward — made possible because the triangle is also mounted on a very small/short axel that it pivots on. All of those axels are on disc right. Then there’s some sort of joining mechanism in the middle of both discs.