In order to use our 3D printers you come with your "stl" file to us. This way we can together determine the printing direction / printing density and cost price. When printing, we also use support. After printing, this support needs to be taken off of washed away with water (depending on the printer).
After printing, these files need to be put on-line at Instructables (when you are not a KU Leuven student or personnel). For more info, see FAQ). When you don't do this, you can not use our 3D printers. Then we kinldy refer to i materialise or shapeways.
In order to use the 3D printer, you need a drawing in 3 dimensions. You can create such a drawing in several 3D drawing programs (CAD programs). When your drawing is finished, you need to export this to a .STL file (in millimeter!).