I am new to shapeways and somewhat new to blender so I apologize if this is a very basic question. I downloaded the shapeways basic iPhone case to design my own. The file is found here: http://www.shapeways.com/model/559554/basic-iphone-case-fram e-downloadable.html?li=productBox-search I imported the .3ds file into blender 2.67 and checked the scale. In blender the length of the case is roughly 4.5 meters when in reality it is 115 mm. I want to make sure my designs are not too small (less than .02 mm) so I need to be careful with the sizes in my design in blender. i know I can use a ratio to determine the correct sizes but do I need to scale it down to actual size before uploading to print anyways? Is there a quick and effective way of doing this? Before I found this file I started from scratch and I was using the dimensions Apple posted on their website. I was able to make a correctly scaled model this way. I had hoped the shapeways case would already be to scale. Is it an effect from importing into blender? Thank you!