Tools for making Pasta
The two tools I have used to make my own pasta are rollers and extruders.

The extruder sounds similar to the pressurized tool you described above. It uses an auger like a meat grinder and produces round pasta like spaghetti. Shells and macaroni are also made by extruding. The material that the die is made from with affect the texture of the pasta surface. The one that I used was an attachment to a stand mixer and costs ~$100.

Pasta rollers have a couple precision rollers with variable spacing for forming the pasta and a set of cutters for slicing the pasta into linguine. There are various sized cutters- my cutters are just one size. The rollers are also a fairly simple machine and can be powered, a stand mixer attachment, or rolled by hand which I have. My hand cranked rollers cost ~$50 new. 

Rollers are easy to get used because they are the kind of thing that people get for wedding gifts and never use- like yogurt makers. I got mine unused at a garage sale for $5. This bit of information may not be applicable to you in Germany. :)