About this 3D model
Edited the locking tabs from this http://www.thingiverse.com/thing:108912 Those ones were too large and wouldn't snap in the holes for my 2006 mac pro brackets, so I shrunk them down and now they fit perfect!
Edited the locking tabs from this http://www.thingiverse.com/thing:108912 Those ones were too large and wouldn't snap in the holes for my 2006 mac pro brackets, so I shrunk them down and now they fit perfect!