I prefer to keep the bulk of my spare nozzles labelled and tucked away in a drawer.
I started helping a friend print miniatures, but wanted to also swap my printer back to larger nozzles for my own projects. The original of this model offered a quick and easy way to put together a custom local-storage solution to locate close-by the six nozzles I am rotating through.
The empty hole can also provide a visual indicator as to which nozzle is currently installed, while short-term memory serves to tell which one goes where...
BUT WAIT, THERE’S MORE!
I also came up with a way to label each nozzle so that:
it is all posted here: https://www.printables.com/model/300093-labelscaps-for-e3dm6-nozzles
The author remixed this model.