1. Click File > Save As.
2. Select STL (*.stl) as the file type.
3. Click File Name > Save.
4. Select Binary.
5. Select Detail Controls from the Mesh Options.
6. Set the maximum angle to 1, the maximum aspect ratio to 6, and the minimum edge length to 0.05.
STL problems
You may experience these problems with your STL files.
● Too many or too few triangles
Too many triangles are difficult to process and, when a certain size is reached, the extra triangles do
no
t provide any further accuracy. For this reason, an excess of triangles could increase processing
time for no benefit.
Triangulation of a surface causes faceting of the 3D model. The parameters used to output an STL
model affect how much faceting occurs.
Example of tessellation:
● Holes in triangles
STL models commonly suffer from surfaces that are not joined to their neighbors, and missing
sur
faces.
Repairing STL files
Software tools and common STL file errors
STL-repairing software
● Magics – Materialise
● Netfabb
● HP SmartStream 3D Build Manager
Common errors in STL files
● Triangles not joined
46 Chapter 6 Prepare a file for printing
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