I re-modeled the excellent design from ben-s in Fusion 360, and modified it for storing Aloris MXA holders on 2" T-slot framing from McMaster-Carr.
T-Slotted Framing: https://www.mcmaster.com/3136N28-3136N294/
¼-20 T-Slot Nuts: https://www.mcmaster.com/47065T905/
¼-20 FHCS: https://www.mcmaster.com/92210A537/
The author remixed this model.