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I created a low poly alien in blender and wanted to print it exactly the way I created it. It's modeled in quads which are converted to tris when exporting the stl. I know stl works with tris but it messes up the look of my object. I tried to export it as an obj file as well but I have the same issue with it.

Is there a way to prepare my file for printing without converting the quads to tris?

Thanks a lot. Cathleen

enter image description here

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    $\begingroup$ Welcome to Blender.Se. I don't know what type of object your 3D printing device can handle, but STL, as you mentioned is the most common file format and it supports tris only (because they identify the geometry uniquely). If you see a difference between the triangolated model and the original one, it's beacuse your quads are not planar. $\endgroup$
    – Carlo
    Commented Mar 13, 2018 at 13:31
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    $\begingroup$ Here's a possibly related question: How to make all quads or ngons on your mesh planar (2d)? $\endgroup$
    – Carlo
    Commented Mar 13, 2018 at 13:33
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    $\begingroup$ Oh, you're right, that actually makes sense. Should've thought of it myself. I guess I have to change the model to look fine with tris. Thanks for the answer. $\endgroup$
    – Cathleen
    Commented Mar 13, 2018 at 13:34
  • $\begingroup$ Glad it helped. You'll find some useful answers in the linked question. Sadly there is not an easy solution to the problem. $\endgroup$
    – Carlo
    Commented Mar 13, 2018 at 13:38
  • $\begingroup$ Also, have you tried to convert the blend to triangles before exporting to stl? The edit mode command is CTRL+T $\endgroup$
    – m.ardito
    Commented Mar 13, 2018 at 13:54

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