Hi rudschul, On the advice of Sintratec, I have not yet tried experimenting with the parameters. However, on my OpenBeam Kossel Pro I have done a huge amount of experimentation and can print down to 0.2mm wall thickness. This is the kind of thicknesses I am after and if the Sintratec kit is capable of printing just outlines this would open up a huge area for experimentation. By using surface modelling instead of solid modelling I can persuade Simplify3D to print single outlines but it looks like the Sintratec software does not recognise anything below 0.5mm, in the default settings. I will experiment with the custom settings and report back.