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My current design is comprised of a single path of vertices, defined by vertical and horizontal edges linked by 90° corners. Applying the skin modifier to this path of vertices creates perfect rectangular segments, but the corners display concave artifacts.

Any suggestions?

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2 Answers 2

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I suggest using a combination of Screw + Solidify modifier (your base mesh must be flat for the best result) :

Screw : Along Z, 1 step (If using Blender < V2.83, the minimum steps is 2. Make sure the angle is 0°), Remove smooth shading

Solidify : Complex mode, offset 0

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If you want to have the height centered around 0, simply add a displace with a driver :

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Result :

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Add custom properties if you don't want to deal with the modifier interface :

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    $\begingroup$ More parametric goodness from Gorgious : ) .. are you enjoying Houdini? $\endgroup$
    – Robin Betts
    Commented May 25, 2020 at 8:05
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    $\begingroup$ @RobinBetts Didn't have much time to use it !! But definitely having fun with the first few tutorials :) $\endgroup$
    – Gorgious
    Commented May 25, 2020 at 8:56
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    $\begingroup$ Nice use of the Screw modifier, I'd have never though of that $\endgroup$ Commented May 25, 2020 at 11:25
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    $\begingroup$ It is also a nice way to create walls from .dxf in arch viz $\endgroup$
    – Gorgious
    Commented May 25, 2020 at 17:11
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    $\begingroup$ This is a perfect solution to my question. Thank you so much for the detailed walkthrough. $\endgroup$
    – dman
    Commented May 25, 2020 at 18:07
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If your path is flat, then making it a poly-curve, then setting it to 2D and object-bevelling it in its Geometry panel with another, square, curve, will produce perfect mitres at the corners.

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