Spool Holder for Printrbot Maker Edition (8mm rods)

I created this after finding one for the simple metal, but not the maker edition. The problem was, the metal uses 12mm z-axis rods, and I needed 8mm, so I created this and wanted to share. Since it took me a few tries to get the hole diameter correct, I had 3 I could use and was able to mount 2 spools up top :) I would recommend printing 2 so 1 can block the spool from sliding off, if that is a concern.
Note: it goes on the z-axis rods 'tight', I tapped it on with a hammer. I can make one with