The info panel shows a "Stream error" message when trying to import a mesh file.

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Issue:

Import Mesh block displays the message "Stream error" when trying to open an STL file.

Applies to:

  • nTop 2.22.7
  • ASCII STL

Cause:

This error occurs if an STL was created using an ASCII representation, and the Header exceeds 100 characters.

Solution:

  1. Make a copy of the STL as a backup.
  2. Right-click the STL file and select Open with > Notepad
  3. On the first line, after the word "solid," eliminate some text until the Header contains fewer than 100 characters.
  4. Click File > Save

More on this topic:

Keywords:

stl 2.22 stream error import mesh 
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