Cupinix puzzle

Original puzzle designed by Erhan Cubukcuoglu from http://diypuzzles.wordpress.com/. More details about the puzzle including dimensions, tips and solution can be found here: http://diypuzzles.wordpress.com/2013/06/11/cupinix/

The puzzle has 13 pieces total. Pieces 1 through 4 are identical, as are pieces 5 through 11. Pieces 12 and 13 are both unique.

Thanks to Erhan Cubukcuoglu for the design and detailed instructions. 3D files created by myself in Blender 2.69. Shared with written co