NOTE!: If you have a MultiWii Flip please makes sure you download the multiwii_flip_top.stl file. I just came to find out today that the board orientation is different than the MultiWii X-Rock. For the MWC Flip the USB connector faces the front of your multirotor. So I had to rotate the orientation arrow 90 degrees to accommodate this difference.
This has been tested with the MultiWii Flip 1.5 and X-Rock flight controller boards. It has been printed in both red and clear PLA with my MakerBot Replicator 2. For more details please watch these videos: