Hi Michael,

thanks for the explanation, much appreciated! At least the re-scaling with .obj in Blender works fine. The only thing now what puzzles me a bit is the .VRML export from Blender, since the apps i have have no .VRML import and therefore i can not check the scale at home, but i assume that those 3D printing programs for a 3D printer will let allow the operator to fix scaling issues.

Best regards
Stefan