First of all, thank you for releasing the stl file for the lumia 820. I'm looking forward to make custom casings. I would like to ask however if it would be possible to release a more precise file format e.g for solids like STEP *.stp because those are also easier to model with in engineering/design programs. The stl file is usually the final file you send to the 3D printer and not what I and probably Nokia is modelling with. Thank you for hopefully considering.