These are the easiest pieces to design. But the hardest to have printed. Shapeways has this thing with cleaning and shipping. They seem to pack them tight and being plastic place in bubble wrap bag! packing the wrong way they will bend and break! and handling also has to be carful. It seem after painting they seem to be stronger. Having one end smaller then the base. placing them together they will get out of shape! to keep the price I use min. wall size. which keeps them to scale but easily broken if not cared for right! thanks! I did a set of High power towers too with this type of design!