I wanted to add QBO capsules (Coffee capsules for a machine produced by Tchibo) to my tee box from Depot. Those coffee capsules are cubic (cubic->qbo) and have the following dimensions: 28 - 28 - 25 on the grey side of the capsule.
in the design i used 28,4mm and space of 1,6mm between each capsule, since there is an offset on the coloured part of the capusle.

This is the box
https://www.depot-online.com/teebox-32x20x6.5cm-bambus%2Fcn-GRF002.html
Those are the capsules:
http://media2.tchibo-content.de/newmedia/page/img/5f433069c4532e96/image.jpg

This is the design:
https://www.tinkercad.com/things/2Xp9ftsTieQ-qbo-inlay