If you rate then leave a comment to justify your rating, cool? Awesome.
the model uses those 1x4 bricks with groove to slide along those 1x2 plates with door rail. every exposed surface that slides along another exposed surface is plated with those smooth tile pieces. lastly, there are pieces that hang down as "stoppers" so that the slide only slides three brick lengths.
i hope that gives you a good idea of how its done. maybe ill post some pics of it apart so people can get a better idea.