Of course I have a juicer already, in fact I have three.
Two manual one's and one electric. The two manual ones are alright, but they are small and you can only juice oranges in them. The electric is hard to wash, it does not juice especially well (the "not-juice" is very wet, sometimes it's more juice there then what dripples out) and mostly, the juice is very clouded and foamy. I don't like that. I tried buying something, a Ferrari press from the, it did not work properly either, apparenty it's not that good. I emailed the seller and I got some hints, but it still doesn't measure up to what I want.
So I decided to build one instead.
This is it, a construction of m12 threaded rod and really thick wooden planks. The first iterations broke in funny and spectacular ways. The second one as well. The third still holds but I figured that I needed to grind apples before, so I built an apple grinder. Instead of talking to much about it I could show you, and here's the youtube video of it: