3
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BEFORE

enter image description here

AFTER

enter image description here


Degree is not known. Is there a method to straighten an object? no need to re-create.

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6
  • $\begingroup$ @JohnEason in the first image, the object is rotated approximately 30 degrees along the x-axis. But it is not known how much exactly. $\endgroup$ Commented May 20, 2022 at 10:35
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    $\begingroup$ Ok. I deleted my comment because I saw what you meant before you added your comment. See if this YT video helps. $\endgroup$
    – John Eason
    Commented May 20, 2022 at 10:40
  • $\begingroup$ Incidentally that video is for Blender 2.8 but I assume you can still do the same in 2.79? $\endgroup$
    – John Eason
    Commented May 20, 2022 at 10:44
  • $\begingroup$ @JohnEason thank you very much, when I clicked on the link, youtube suggested another video, this video also helped another-video-yt $\endgroup$ Commented May 20, 2022 at 11:09
  • $\begingroup$ if there are other ways, i would love to know $\endgroup$ Commented May 20, 2022 at 11:10

1 Answer 1

3
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2.81+

  1. In Edit mode select one of the rectangular faces and make a new custom orientation from the orientation menu in top of 3D view:

enter image description here

  1. In Object mode choose affect only origins in the right top corner of the 3D view:

enter image description here

  1. Now in menu ObjectTransformAlign to transform orientation

  2. Disable affect only origins back and press Alt + R. Object will be perfectly aligned.

Note for older versions.

In case if you are using older versions, and you haven't affect only origins option which was introduced in 2.81, you can do the following:

  1. As before

  2. Add new empty object and in menu ObjectTransformAlign to transform orientation

  3. Parent object to empty, select empty and press Alt + R

  4. Select Object and unparent it Alt + P - Keep transform.

  5. Apply transform Ctrl + A -> Rotation

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  • $\begingroup$ Thank you! Also remove the custom orientation in step 4 $\endgroup$
    – Alice Chan
    Commented Sep 19, 2022 at 1:28

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