Hi,

the STL file (uploaded as txt file) in the attachment, consisting of two juxtaposed cuboids of different size and having in total only 22 surfaces, fails at importGeometry. The geometry is very simple, and there are no tolerance problems to be seen (only coordinates with 120, 100 80 40 and 0 values)!

How to fix it?

Best regards

Urs

Cuboids;

Small Program:

model = createpde('structural','static-solid');

importGeometry(model,'…\cuboids.stl');

generateMesh(model);

figure(1)

pdegplot(model,'FaceLabels','on');

Error message:

Error using pde.DiscreteGeometry

Failed to create geometry, the input does not form a closed volume.

This may be due to missing faces or gaps in the input.

Error in pde.EquationModel/importGeometry (line 60)

gm = pde.DiscreteGeometry(geofilename);

Error in Cuboid (line 14)

importGeometry(model,'….\cuboids.stl');

## Best Answer