Hack on Delonghi grinder KG79

Factory settings

Marked the factory fine setting to have some reference

Making the changes

Overdoing the fine setting could damage the machine.

Since I couldn't find any good reference, here are my results, for future reference in case I need to change again or for anyone interested on performing the same change.

This is the new fine setting:

And for reference, here's the new coarse setting:

Operation

On the usage, the dial has 16 positions from coarse to fine.

The last position revealed to be too fine, the coffee machine was struggling to extract an espresso in a timely manner.

By experimentation the best setting is one position immediately before the last one.