Blender Stack Exchange is a question and answer site for people who use Blender to create 3D graphics, animations, or games. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

How can I make a Bézier curve into a 3D-noodle-like structure (like a tube)? When I try, it keeps turning out like a rectangle with corners.

share|improve this question
Did you see there is a way to make a tree with a built-in addon in Blender? See here:… – Thom Blair III Apr 18 '14 at 2:27
Great article! Also wrote a similar one that included using this same method but with tapering tubes as well: – user13442 Mar 27 '15 at 18:56
up vote 16 down vote accepted

To make a tube, set the Fill to full in Curve > Shape:

enter image description here

Then increase the bevel Depth and Resolution in Curve > Geometry:

enter image description here

If you want a more complex/custom shape, you can use a bevel object:

enter image description here

share|improve this answer
Thanks so much!!! I had everything right except the resolution lol. Also how do I make it branch off? – Zachooz Apr 18 '14 at 1:32
I just duplicated a segment and then extruded it in another direction. This will work as long as you don't mind the branches not actually being connected to each other, but if you do want them connected, you might want to try using a mesh object with a skin modifier. – gandalf3 Apr 18 '14 at 1:34
It would be better if you asked this as a separate question, asking multiple questions per post is discouraged. – gandalf3 Apr 18 '14 at 1:45

Make a Curve into a Tube

  1. Add a Curve: SHIFTA -> Curve -> Bezier

    enter image description here

  2. Now add a Circle Curve: SHIFTA -> Curve -> Circle

    enter image description here

  3. Now use the circle as the bevel object for the bezier curve:

    • Select the bezier curve

    • Object Properties window -> Curve tab -> set Bevel Object to the circle

    • Scale the circle until the tube is the size you want

    enter image description here

  4. If you would then like to edit the shape of your tube, just edit the Bevel Object, which here is the circle:

    enter image description here

share|improve this answer
I really like this tutorial! I just wonder, why is there such a big size difference between the "tube" and the bevel object? – drmariod Mar 9 at 6:34

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.