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How to measure my part which is in stl file format?

Tutorial by Sébastien 0-B
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Hi,

You can measure in Meshlab! There is a tool in the quick acces toolbar.

See below, please excuse my english and my french image !! :)

  1. Step 1:

    Measure in meshlab...

  2. Step 2:

    You can also reduce the number of element of your stl to import it in SW

    Go to filters, Quadric Edge collapse decimation

  3. Step 3:

    SW can handle a maximum of 100 000 triangles for a surface importation and a maximum of 20 000 for a volume importation (you'll understand next)

  4. Step 4:

    Enter the number of triangles. 100 000 is for the best quality, like I said, if you want to open it in SW, but it's really long to open... . Anyway!

    I usually lower the number by 5 to be sure I won't have one extra triangle.

  5. Step 5:

    As you can see, you are not exact (really close)!

  6. Step 6:

    Now you got to export your mesh

  7. Step 7:

    Choose STL

  8. Step 8:

    Open your Solidworks, select STL format and clic OPTION

  9. Step 9:

    Choose the lowest case for surface importation (that's what I talked about in step 3)

  10. Step 10:

    Now wait until your model is created...For the exemple I dropes triangles to 20 000.. That's too long for me with 100 000..

  11. Step 11:

    And you can now measure with measuring tool

  12. Step 12:

    There is an other way to deal with stl in SW, but I don't know everyone have the extension in SW..

    You cannot measure quickly in this method, but you'll able to redraw a stl..

    Export your mesh as .PLY file (.OBJ works fine too). No need to decrease the number of triangle.

  13. Step 13:

    Go to SW, open a new file and activate SCAN TO 3D extension

  14. Step 14:

    Right click on the toolbar and select Scan to 3D

  15. Step 15:

    Now open your file .PLY or .OBJ

    (Sincerely, I don't know why solidworks isn't able to open STL file as a mesh file... You really need to change the format to tell him : ah Ok it's mesh and not a graphic image)

    Now you see your mesh

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