I've uploaded a design and requested it be printed in two different materials, White Strong & Flexible and Gold Plated Glossy. Both requests were declined, with the diagrams below as visual aids... White Strong & Flexible Reason: Thin walls Additional information: The minimum wall thickness for this material is 0.7mm. Please thicken the walls of the model. The minimum thickness for free wires > 1.0mm and supported wires > 0.8mm for this material. And the diagram below says Look, the record is 0.66 and needs to be 0.8 And then Gold Plated Glossy Reason: Thin walls Additional information: The model is too thin to print. Increase wall thickness to at least 0.03" / 0.762mm in all areas. And the diagram below says Look, the record is 0.0258 and needs to be 0.04 Why on Earth would these values be different? Are you mixed up between mm and inches? Do you know how hard it is to get a designer to get this 3D Design right when I told him the minimum should be 0.04 and he comes back and says "it's already 0.66 which is way bigger so any further changes are chargeable" Very irksome.