I created my first designs yesterday using Sketchup. I converted them and repaired them with little issue once I downloaded the recommended software. My problem is that they kept being rejected for being too small. Originally my designs were roughly 1.5cmX1.5cmX5CM in size. I know there are many things much smaller than this available on Shapeways. I had to keep scaling them up until they were closer to 3X3X8cm before they were accepted. Can anyone give me any advice on how to make small pieces using sketchup? Thank you in advance.