I printed a few before I got the size I wanted. I used Makerware to Scale the original file (see third image), and I ended up with plenty of room for everything. I used a dummy mock-up of my SCK to test fit so I wouldn't have to handle the actual electronics so much (http://www.thingiverse.com/thing:441008). My next step will to make a cover that uses the laser cut case that I got with my kit last December. Stay tuned, I'll post files for it when I'm done.