Should anyone expect and waiting for an update of this project, then I have "bad" news: I do not continue with this concept! I stop it for the following reasons:
* I prefer a system with a lower consumption of chemicals and
* I hope next week to become the owner of a factory system, namely a Filmrunner (a rotation system).

If I unexpectedly cannot or do not buy the Filmrunner, then I will pick up the 'lego-route' again. I have already made a new concept. This time using the RCX in a rotation system to the Filmrunner, I have already worked out this idea on paper which you can see here: