LM8UU bearing mounts for Aleph Objects (AO) X Idler

In the process of building another prusa and wanting to use my known good parts with improvements including LM8UU bearings I adapted thing 21324 to mount on the AO X ends (http://www.thingiverse.com/thing:15492).

Use http://www.thingiverse.com/thing:22129 for X Motor end - NOT this one :)