Hi rudschul, good to see your machine is now performing properly. You are very lucky that you were able to visit the company and get first class help from those with the best knowledge. I am very pleased with my machine and regularly printing parts with 0.5mm wall thickness. The parts I print are for competition space models and as such need to be as light as possible. I would like to try printing less that 0.5mm but currently the software does not recognise such thin walls.