Espresso Coffee Beans Shot Measure

I'd become bored with measuring the weight of espresso coffee beans on each shot.

So I adjusted the size of a cylindrical measure to hold the number of beans that matched the 17g shot I'm used to making.

The shape of the measure is to allow it to be stored out of the way, inside the coffee beans container.

The beta model was a simple cylinder, printed with only two perimeters.  

First use of the measure made it obvious that it was too easily squished with two fingers.

So corrugations in the wall have been added for strength. They also add to firmness of a non-slip grip.

The corrugations were generated as a helix or thread.

So now I just fill the measure to the brim with coffee beans and level off with a finger.

An espresso purist might say that doing this  will not supply a consistent weight of beans, especially when changing to different coffee beans.

That's true. But from experience, I've had to adjust the weight of beans when grinding different beans anyway.  

So for different beans I've found that mounding or cupping the fill is sufficient to get a nice portafilter shot without waste.  

I'm using Vittoria Oro beans but this might be useful as a start for other beans.

Anyway, the shot measure achieve the goal of simplifying the process of single shot brewing and my coffee scales have been shelved.

I printed the model in PETG, 0.15mm.