About this 3D model

Always being amateur gardener, I use a watering can to water my seedlings and plants. I was a bit fed up of having a sprinkler head that "leaked" always down (see photos). So I made this 3D printed showerhead. As can be seen on pictures, more leakage !! It is adapted to a mouth of the outer diameter of 3cm. (But a scaling factor to allow printing of the apdater all sprinklers)