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I'm trying to make a 3d stl of a water droplet (for a 3d printer). Essentially what I was thinking was to draw out a line like so

\
 \ 
  |
 /

And then rotate it around the z axis to make a 3d shape. First, I can't seem to figure out how to do this, second, is that the best way to accomplish this task?

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  • USING A SPIN TOOL:

With the pivot point type set to 3D Cursor snap the cursor to the center of a grid (Shift+C) then add a single vertex. In side view create the droplet's profile by extruding the vertex with E or Ctrl+LMB. Go to the top view and press Spin button (located in a Tool Shelf). Play with the steps number.

enter image description here

  • USING A SCREW MODIFIER

Select the profile and give it a Screw Modifier. Set the steps as you like. This is a better method as it's not destructive for a mesh.

enter image description here

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  • $\begingroup$ The screw modifier was exactly what I needed, thanks!!! $\endgroup$
    – easycheese
    Nov 24, 2017 at 20:59

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