I did stand for my model, and I want to do support edges on 3mm at all faces. I did this everywhere by this method: I press ctrl + R, created loop cut, bring it to the end of the face and then move it, like G + X + 3mm. When I got the last loop cut, I faced a problem: I cant move loop cut on Z axis, because face is oblique. I looked for how I can solve this, maybe move loop cut not on the Z axis, but move on normal axis. I hope you understand, there are model and picture, where I did what I want, but I need exactly straight cut.

enter image description here

  • $\begingroup$ You mean like loop-slide (G+G)? $\endgroup$ – Christopher Bennett Aug 11 at 8:17
  • $\begingroup$ @ChristopherBennett Yes, somethig like this, but size, not percent moving $\endgroup$ – user99579 Aug 11 at 8:18
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    $\begingroup$ Hello :). Perhaps the Bevel tool could work. With two segments and profile=1 it will create two loops around selected edge. Bevel allows absolute values (mm) unlike loopcuts. $\endgroup$ – Jachym Michal Aug 11 at 8:30
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    $\begingroup$ @user99579 It does work, I use it all the time for precise loops. Perhaps you missed a step :). $\endgroup$ – Jachym Michal Aug 12 at 11:37
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    $\begingroup$ @JachymMichal Ah, I did this again, you are rigth. Thanks, it is one of solves $\endgroup$ – user99579 Aug 12 at 18:28

Problem solved:

  1. Subdivide edge one time.
  2. With Edit Mesh Tools add-on set edge length (before this you need to apply scale by Ctrl+A> Apply> Apply all transforms or (in 3d Viewport) Object> Apply> Apply all transforms).
  3. Switch to any orthographic view (top, bottom, left or other) and extrude vertex by pressing Ctrl and enabled (in 3d Viewport in Edit Mode) Options> Auto Merge> Split Edges and faces (on top).
  4. Do this with all sides, removing duplicates if needed. You can check edge length by using Overlays> Measurement> Edge Length (in the 3D Viewport).

You can do the same thing with the Knife tool, but the Knife won't work in all situations.

Also, one of the ways: Bevel edges with settings: segments - 2, profile - 1. Bevel has differrent modes (Offset, Width and other), we need Offset. For bevel modifier you can do vertex groups where you need and bevel just them.

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