When we turned the machine on the power, we discovered that the screw was left turning and the machine is right turning. So the granulate did not get in to the extruder. The next extruder screw, based on a design form Cavas and Costa (A miniature extrusion line, for small scale processing studies, 8 March 2004) will be right turning to fit our machine. Further more we had some discussions with a few tutors and we conclude that we have to heat the barrel. The heating will be realized on wednesday. In the next update we hope to give some real results.
Extrusion process update