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I would like to make a two wires wound on themselves like for light garland (like a spiral).

  • To make it easier i use a curve (i will later add bevel and array modifier).
  • But I have a problem with mirror modifier, this modifier is very useful to create directly the second wire.

This is the expected result :

enter image description here

I only succeeded to make the wire mirror around the plan y=0 and not the axis y. I got : enter image description here

I have also tried to mirror around a straight curve.

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Once twisted, the wires are not reflections of one another in one plane; they both wind in the same direction. If Z is along the helix, wire A is a rotation through 180 of wire B around Z, or A is B scaled by -1 in X and Y, (a reflection in 2 planes simultaneously, which the Mirror modifier doesn't do).

TLDR; You can mirror the wires before twisting:

enter image description here

Foreground, front to back, with the following modifiers:

  • A straight Bezier curve, subdivided into a reasonable number of 'Automatic' control points, and offset in X from its object origin, in Edit Mode.
  • Mirrored in X
  • Simple Deform > Twisted through 360, around Z
  • Arrayed in Z

Background: Curved around another spiral curve.

If you need two colors in the flex, you can offset the V of the UV by -1 in the Mirror modifier's 'Data' section, and use nodes something like this..

enter image description here

..testing for V < 0.

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  • $\begingroup$ To make a straight Bezier, call up the default curve, and hit 'VV' in Edit Mode. $\endgroup$ Jun 10 at 18:37

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