I have very few slim 3.5 disks (and a lot of regular 3.5 disks), so printing the 6 slim disks stand (https://www.printables.com/model/106802-hard-drive-stand-for-six-35-slim-drives) of axeli would have been a waste.
Instead, I made this very simple adapter to use with the regular size stand.
The author remixed this model.
A simple adapter to use with the original model.