juice squeezer

###The story:
When life gives you Lemons...

...print an electric lemon squeezer. It actually started with a big sack of oranges I bought on a budged a while ago. They were too much for me, so I decided to make some juice. But there was no squeezer. Obviously this is one of the ever-growing number of problems in life that can only be solved with 3d-printing.

###My goals:
* 1: Design a squeezer for ~1/2l of juice
* 2: Make it motorized because why not?
* 3: Use a graceful way to activate the motor
* 4: Make it reproducable (e.g. only use widely available standard-parts)
* 5: Don't kill people with an extremely unsafe design
* 6: Make it look fancy
* 7: Make it printable on a 20cm buildplate
* 8: Make it simple

This resulted in a design based on cheap and very simple KTYZ50 motors with a sophisticated translation based on inner/outter gears. I'll upload that one later in a series of failed designs (but I've added a rendering to the images list). Why "failed"? This motor