Hi guys, I'm trying to sort out my little DS stylus sort of design, I uploaded a version to shapeways and it's printable, but I wasn't too sure on the dimensions, so I went back into Blender and simply resized it, now I'm getting non-manifold vertices out of nowhere on the edge of a mirror modifier. I've tried deleting the faces and refilling them, nothing. I can't even move the vertices because of the mirror. The problem wasn't there on the bigger file I uploaded :S Could someone take a look for me and tell me what the problem is? Also some feedback on how to get my model to scale to serve as a DS stylus for example would be helpful. Cheers in advance EDIT: Forgot to add the most important part! The non-manifold vertices in question are along the middle of his head.