They have a broad range of courses including electronics, wood, metal, etc. Personally I'm interested in making wood furniture, so that I will probably participate one of the courses.
Siemensstraße 140, 70469 Stuttgart
They make courses or event for 2-3 time per month.
It runs based on reservation, but free visit is possible after 18h30.
Walter-Simon-Str.14, 72072 Tübingen