NXT camera dolly

Whenever I made images and movies of my NXT robots previously, I always have been unsatisfied with the quality of my recordings. Hence, I decided to build a stable camera stand to avoid at least wiggly images. Of course, as a NXT builder I ended up not with a simple stand but with a programmable camera car on rails (which is, as I learned, in lingo called a "camera dolly"):

 

I am still lacking the skills to produce such excellent robot movies like some of my NXT colleagues; but at least I might be able to make some with smoother tracking shots now.