Espresso fill

I love a good espresso. But I'm the only one drinking espresso in the family. So I have a simple expresso DIY machine. Fill the piston cup with one scoop, press, second scoop, press, A formula for spilling coffee.
So I started drawing a solution. One, two, three, four and more options. This would take some time :-/ So for the time being printing a workaround. Just a way to collect the two scoops of fresh coffee before the press. This was four months ago now. And the workaround works better than expected.
Only if you have the a piston holder with exactley the same demensions you can use the STL. But its easy to copy the idea. Printed it in PETG vase mode. Very durable.