I've printed out a couple other versions of this, but alas they all turned out to be too tight for my Eclipse cubes!!

So, I designed my own with extra wide holes for the cubes for printers like mine with a monstrous .04mm extruder.

Enjoy!

Feel free to check out my other designs which are as diverse as they are many:

http://www.thingiverse.com/3E8/designs