Summary

Hypercube fidget spinner (30mm), continuing my series of small spinners. The first interdimensional spinner in the world. Don't ask me if dimensional weirdness start to happen at your fingertips heheh...

Use a R188 Bearing (4.8 mm tall) and baseplate support for printing.
Recommended print in PLA due to little hangouts that could break in ABS without layer cooling.
Sand it a bit, use a drop of glue to fix the bearing and caps an you are done.

Previous spinners here:
https://www.thingiverse.com/thing:2386158
https://www.thingiverse.com/thing:2381990

Enjoy.

UPDATE (28-JUN-2017): Increased tolerances of top and bottom parts for a better build. Corrected STL's base alignment.