I have major problems getting scaling of Blender 2.80 3D Printring toolbox export to work. With Cura 21.08 it works flawless, no problem, the model is imported fine. Cura 3 has major problems, it starts scale by 1000000 by default but even then the model is too small. If the the model is at least 10 cm I can scale again by 1000000 and I get the model to slice, but for every object smaller than this it fails.
I tried to check some options in Blender already regarding unit setting but can not find anything to get it work to change the STL unit base. Also obj export does not help. Nor I can not find any setting in Cura 3 to modify any import scaler, from my point of view this would be most helpful. Have you any hint how to configure the scaler in Cura 3 itself?