Hey everyone,
is there an easy way to straighten a line of edges without changing the length of the edges it is composed of?
I am basically trying “unfold” a cube, but I don´t know the angles of the different Faces. This means I can just rotate it by eye, which is not exact enough for my purposes. Does someone have an idea how to help me?
There is an addon called ExportPaperModel, that will export the UV island as mesh. You can reimport the model after that.
Otherwise, you can try to use the TinyCad addon to extend the edge you want to align with, then rotate with the snap feature (don’t forget to enable rotation snap) and snap to that edge
I think I understand
if it’s just unfolding a cube, and you don’t want to mess around with rigs, this is what you can do.
Select the top verticies, and use V to rip them:
Note: The face your cursor is hovering over determines which face gets split.
Then select the bottom two verts, and set your 3D cursor to that point (Shift+S) :
Then, with your transform set to 3D cursor, rotate the selected face via the correct axis 90 degrees:
Might not be the best way to do it, but it works. Hope it’s what you meant…
This doesn´t help me because the angles are very weird. They are not 90 degrees, and I don´t now them. But thank you anyway for the detailed answer!
Thank you for your answer!
UVs don´t work for me, Blender doesn´t seem to do them without stretching even thought I made all the correct seams.
You snap Idea doesn´t work for me too, because Blender doesn´t snap to edges that are on the same Object for some weird reason. But it gave me the idea how I am doing it now.
It is not particularly elegant, but it works. Basically, I just rotate in the wrong direction until the Faces intersect. Then I rotate by 180 degrees.
Under the snap settings, you can activate “Snap onto self”
I gave a try and here are the settings i used.
if needed, Extend the edge you want to align to with edgeTools, set the cursor at the rot location then set active the edge you want to align . Rotate and snap 
This is what I was looking for thank you so much!
