I made one but the fit is real bad. Needs lots of sanding to make things fit.
The micro servos are to small for this application.
Abandoned without building the camera housing.
You might be interested in these ones instead;
http://www.thingiverse.com/thing:898517 It has nice ball bearings, standard servos (not micro) and a perfect fit when it comes to assembly.
http://www.thingiverse.com/thing:107957 very nice and compact. I have build both of them and am happy as a clam with them.
Very well designed for a 3D print job.
I don't know what is wrong with this design, but I have already spent enough time and plastic on this to know its not for me.
Looks so cool though.
The author also can't be bothered answering the other guy's question.