What you see there is just the way the 3D applet is rendering your item. It is over-smoothing it, resulting in weird shadows along 90 degree (or other sharp) corners. Don't worry about it, is my advice It will turn out fine, as originally designed.
-WhystlerCheck out my website: http://tshawnjohnson.wordpress.com/
I don't know personally how well threads work with this printing process. I have often wondered.
Has anyone else made anything with threads?
(if no one answers this question here, it might be a good idea to create a new topic about it with "threads" somewhere in the subject line to get attention)
-WhystlerCheck out my website: http://tshawnjohnson.wordpress.com/