I took the original file by smrogers91 found at https://www.thingiverse.com/thing:3180130 and made the mini box a little deeper to fit a 30mm base with 4mm extra for 2mm(x2) EVA foam padding.
If you have any issues, please let me know and I will attempt to fix them.
The author remixed this model.
The mini box is a little deeper to fit a 30mm base with 4mm extra for 2mm(x2) EVA foam padding.