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So essentially I need to scale edges so that the offset after transformation is constant distance away from original geometry (something like the opposite of inset). I need it to be procedural, so it has to be done using a combination of modifiers and geo-nodes. Is it possible?

If i just use the scale elements node i get: enter image description here

What I want:

enter image description here

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Solution:

Result:

Brief description of working principle:

You calculate the normal for edges that are parallel to the faces, and then offset the vertices along the average direction of the neighboring edges.

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