Hi, I have one problem about resolution of Cura slicing. I designed stl model has 0.03 mm of wall (for my experiment) but it is impossible to slice and make g code with 0.03 mm nozzle setting value.
It seems 0.1 mm is max value for Cura nozzle setting. I have made super tiny nozzle hole so it might work with my filament if I can make the gcode.
Can anybody help me with this issue?
“Method to make gcode containing 0.03 mm walls.”
Thanks!! 
In order to have a “wall” that is .03mm you have to have a nozzle that is capable of laying down a line that is .03mm wide. Those don’t exist.
A bit more on that, to make a 0.3 trace, you’d need a 0.2 nozzle. What plastic do you hope to shove through that? It would have to be nearly liquefied, I’d think.
The OP needs to specify whether they are trying to print a .03mm wall or .03mm layers. One is never going to happen and the other is going to take some work.
The thinnest wall you could get would be using a .25mm nozzle like those offered by E3D which are great for doing small fine detail prints but like @Dale_Dunn said you can’t get smaller than .3mm width which is your wall. There would have to be a .02mm nozzle and nobody would even want to make that if it was possible. Prints would take days for the smallest item.
The thinnest layer height you can generally achieve is probably going to be .05mm and that is going to be one insanely well calibrated printer with the best hardware.
I regularly print at .1 and .15, but any less than that and you get into a whole new territory of calibration.