From this.. To a solid model - 15cm long Amazing that all that detail survived the trip. Or did it? On all of my ship models there are bollards bow and stern, they meet the material guidelines but never appear on the printed models. Strangely they don't appear on the rendered previews after the upload, but they definitely do exist in the STL - I can see them after re-importing the STL file into the modelling tool. Other similar small detail works perfectly - very odd????