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I'm a new user but I've previous experience with Solidworks where I can put in specific angles and measurements to create the shapes I need. I'm trying to unlearn a lot of this so I can get good with Blender and one issue I am having is creating straight lines on 3D objects. Example Example2

For example in this image I would like the vertices to be as straight as possible but many of the solutions I find online give methods that involve snapping the vertices along the X, Y or Z axis which does not work for the angle I am working with.

Is there a way to select the very top and bottom vertex and then have every other other point between form a dead straight line?

Thank you.

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2 Answers 2

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  • Select end faces.

enter image description here

  • Change Transform Orientation to Normal.

enter image description here

  • Press S then Z to scale on Z axis. But because the Transform Orientation is set to normal, it will scale in the axis of the average of the face normals. Enter 0 as you scale to scale to 0, making it completely flat.

enter image description here

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  • $\begingroup$ Thanks very much for answering, it's much appreciated! $\endgroup$
    – Spicebag
    Commented Jan 8, 2022 at 18:22
  • $\begingroup$ No problem, but I'd recommend moonboots' solution. Custom transform orientations are more flexible. $\endgroup$
    – Benus
    Commented Jan 8, 2022 at 18:39
  • $\begingroup$ @ Benus, I never think about Normals, it's simpler than custom no? In what way custom may be more flexible? $\endgroup$
    – moonboots
    Commented Jan 8, 2022 at 19:39
  • $\begingroup$ If you wanted to modify other parts of the mesh like the edges connected to the flat face for example. i.sstatic.net/tuzOS.gif . I only just learned about custom orientations from your post, and it might just be me, but i'll probably be using custom orientations more than scaling on normals now. $\endgroup$
    – Benus
    Commented Jan 8, 2022 at 19:50
  • $\begingroup$ sure you're right, I was thinking about the current question ;) $\endgroup$
    – moonboots
    Commented Jan 8, 2022 at 20:47
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You can select all these faces and in the Transform Orientations panel, click on the "+" in order to create a custom orientation, then flatten on the Z axis of this new orientation:

enter image description here

Also, you can activate the Edge Flow addon and then CtrlE > Set Linear and it will straighten the faces:

enter image description here

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  • $\begingroup$ Thank you for this, very helpful! $\endgroup$
    – Spicebag
    Commented Jan 8, 2022 at 18:22

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