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I've set up a curve where at some points 3 or even 4 curves meet at a junction:

enter image description here

When I try to convert this to an actual shape:

enter image description here

I get both:

  • really ugly corners,
  • 'twisted' tubing: the square tubing before and after a junction do not align nicely.

So, my two (related) questions are:

a) how can I create the intended shape with corners that line up nicely and?
b) how can I how can I control the rotation/orientation of the tubing along the curve?

Are curves maybe the wrong tool for this job?

Jacco
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    Probably the curve isn't the best choice. You should try the skin or the wireframe modifier. https://docs.blender.org/manual/en/latest/modeling/modifiers/generate/skin.html https://docs.blender.org/manual/en/latest/modeling/modifiers/generate/wireframe.html – FFeller May 18 '20 at 18:42
  • https://blender.stackexchange.com/questions/53475 https://blender.stackexchange.com/questions/66353 https://blender.stackexchange.com/questions/59153 – Duarte Farrajota Ramos May 18 '20 at 23:16
  • Unfortunately, none of the linked questions handle more than two curves coming together at a junction. – Jacco May 19 '20 at 09:20

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