This is only a short clip of showing how to make the motif for the 3D flower cube.
You will need to make 6 of this motif to build a 3D cube. For diagram instructions, please refer to the follow links:

The diagramed pattern is available in my IG or blog (pdf download).

My IG: https://www.instagram.com/p/CcUeZNaJrVQ/
Blog: https://lilliantatlace.wordpress.com/2022/04/14/flower-cube-free-3d-tatting-pattern/

In the sample above, I used size 10 thread and 11/0 beads.

Only one shuttle can make a 3D cube, you wanna try?