Dear Roman Voronov, Do I get it right ?? Horizontal microfluidic channels with designed rectangular cross sectional dimensions as small as 350 μm wide and 250 μm tall are printed with 100% yield, as are cylindrical vertical microfluidic channels with 350 μm designed (210 μm actual) diameters.
No, I am wondering about multi-layered devices, not channel dimensions. I want to know what is the maximum number of layers that have been achieved (ie, largest device height).