Milk frother (Milchaufschäumer)

Here's a simple milk frother.
I designed this because my old one has broken and I have a 3D-printer... ;-)

I used old parts. Switch and motor from electronics-scrap. The essay from a broken milk frother. The power supply is from my old WIFI-Access-Point.

Materials:
- Motor with diameter of 24mm and length of 30mm (RF-280 or similar)
- Switch (snap-in with dimensions of 19,2x12,9mm)
- Power supply with 5V or 6V and at least 500mA current (5V is easier to handle and 6V has more power; If