* Pre-printed parts by Mendel Parts (Mendel v2): [http://www.mendel-parts.com/downloads/3d-models/STL/_MENDEL/Mendel_v2/]
* Running Marlin firmware: [https://github.com/ErikZalm/Marlin/]

Some handy pages to get started:
* Caliberation: [http://richrap.blogspot.nl/2012/01/slic3r-is-nicer-part-1-settings-and.html]