I created an object using the mirror modifier around the global x and y axis, but since I started adding cylinders intersecting one of the mirror planes I already applied the modifier.

Now I want to edit the mesh, while still keeping symmetry in the y-direction, in which the object is still completely symmetrical. I read you can do this through Mesh --> Mirror --> Mirror Y, but when I click this and edit a vertex, nothing happens (neither for x nor z).

I am sure the geometry is exactly symmetrical as it was created with the Mirror modifier around the global axes. Strangely when I click Snap to Symmetry it says 0 already symmetrical, 0 pairs mirrored.

Can anyone tell me what's up, or if there is an alternative for what I'm trying to achieve?

It is all one object and one mesh.

enter image description here

  • $\begingroup$ Sorry for not saying hi or hello, I can't edit the post weirdly? $\endgroup$ – Alabastine Dec 18 '19 at 6:35
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    $\begingroup$ Hello and welcome :). Mesh > Mirror is not the best tool here. Why not just use the mirror modifier again? Just cut your object in half and add a Mirror modifier with Y axis. $\endgroup$ – Jachym Michal Dec 18 '19 at 8:25
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    $\begingroup$ Oh why didn't I think of that lol. It's pretty much my first project so I lack experience. Thanks a lot! $\endgroup$ – Alabastine Dec 20 '19 at 17:24
  • $\begingroup$ Don't worry about it, Blender can be overwhelming. Good luck with your project, looks good :). $\endgroup$ – Jachym Michal Dec 20 '19 at 17:27
  • $\begingroup$ Thank you! Can you guess what it is already? $\endgroup$ – Alabastine Dec 20 '19 at 23:24

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