washing powder automated dosing

My partner and I like to use washing powder in our machine. In ecologically sensitive Germany the powder comes in thin plastic pouches to reduce waste (good!).
I was looking for an automated way to dose the needed 50 ml of powder and transfer it into the machine without having to handle/touch the corrosive powder and/or messing around with a dosing scoop.
The result is attached.
Can be printed without supports (at least on my I3), orient smaller side and screw in thread housing down.
Functi