with SS the minimum wall thickness is 3mm, does this mean that you cannot have an object that is 1mm*3mm*10mm? And that the smallest dimension is 3mm no matter what the other dimensions are? or can you have a 1mm by 1mm * 10mm object?
Or does a ring band has to be 3mm thick in both dimensions?
This page can allow you to determine the info you were needing, http://www.shapeways.com/materialsHave any questions regarding Blender, and need fast answers, you are always welcome at the IRC Server Freenode, channel #blender. As a bonus, several there have experience in modelling for 3D prints.