Marble ball box again

I would have liked to print the Marble Ball Box http://www.thingiverse.com/thing:338467 but Slic3r sliced it into a cube.
So I made another one, I printed with infill 1, and at 92% to be closer to the ball that sizes 1,6cm.
I had to pause the nozzle and insert the ball at 63%
This is not my best print as it is tiny and printed at 0,3mm but it works!