"There is a very similar project by Alexander Wiefel. The machine looks also very similar to this and was build in 2012 or 2013 (I don't really remember the date, ask him) for his bachelor thesis.His project is called http://project-re.com and is a workshop teaching the differentiation of plastics and their recyclability with the machine.https://www.flickr.com/photos/ciscommunity/sets/72157644583970846"