Hi guys, I've browsed around the forum, and people seem to suggest a .2mm tolerance for stainless steel fitting pieces, but I am concerned because shapeways states that the accuracy for stainless steel is only within 2mm of the design. With that kind of accuracy, I am concerned that the two pieces will not fit together in the end. Does shapeway actually care whether or not my pieces will fit, or is it just "luck of the draw"? I hope someone with more experience designing with shapeway can shed some light on this situation. I plan on making something similar to this: http://www.shapeways.com/model/297302/ , http://www.youtube.com/watch?v=pRCIKFr8FM8 or this http://www.youtube.com/watch?v=q43s91UQdEU except my product will need to fit snugly and be semi-difficult to take apart. :blush: Please help~ Thanks!