We started building GraviTrax marble runs with my daughter about six months ago and immediately thought that it would be fun to shoot videos of our creations. Today, we finally put together a clip of our first takes. Looking back at it after several months, it was nice to find some value in it beyond simply being a memory of spending time with my daughter. One thing about activities like GraviTrax, Lego and other construction sets is that the experience of playing with them is fleeting. You put a relatively large amount of time and effort into building a project, but after you take it down, it kind of ceases to exist. In theory, Lego models could be preserved if one has unlimited storage space, but with GraviTrax the pieces are supposed to be reused, so the old projects are definitely not permanent. In that sense, having a video of previous attempts turned out to be quite useful as a reference for the layout, height of the elevation platforms, etc., as we found today when breaking out our new expansion set (a video of that is coming up, hopefully sooner than in six months). In the mean time, here is a look at our first marble run projects.