Hello! I am new to 3D printing, and one of the first things I have designed is a Discraft Logo Keychain. I am able to print other items on my printer without issue including another keychain I designed. With the Discraft Logo keychain though it prints about half of the first layer fine and then starts really messing up. I have looked at the model and can't see any issues.

Any help would be greatly appreciated.

It will not let me upload the STL so I am posting a link to the Thingiverse page with the files.

http://www.thingiverse.com/thing:2062903