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I am working on a project which uses a 3D printer to print parts of the moon, and was linked this add-on to start creating my own models, I have got to this stageenter image description here

but when i export the file as a stl from this point, the stl loads nothing.

Also is there a way to add a flat base to the model, so it sits smoothly when I print it

Blend File

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  • $\begingroup$ 3D print objects can't have any holes in the mesh itself. Your current mesh doesn't have a bottom, so basicly there is no volume to print. $\endgroup$
    – Ezra
    Jun 19, 2015 at 9:23
  • $\begingroup$ So how do I add a bottom, I have never used this software before. $\endgroup$
    – PrintTheMoon
    Jun 19, 2015 at 9:39

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How to add a flat base:

First of all, you need to reposition your mesh so that it is horizontal. After that, select your mesh, press Shift + D, click (don't move the mouse), and drag the new mesh down along the Z-axis. Now go into Edit mode, with Tab, select everything with A, press S to scale, Z (limit scaling to Z-axis) and 0. Your mesh should be flat. Go into Object mode, select both your objects, press Ctrl + J to join objects, go into Edit mode again, select the outer edges of both surfaces with Alt + RMB, press Ctrl + E, select Bridge edge loops, and you're basically done. The result should look a bit like this:

enter image description here

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  • $\begingroup$ Thanks, one last question, how do i reposition the mesh to horizontal? $\endgroup$
    – PrintTheMoon
    Jun 20, 2015 at 11:56
  • $\begingroup$ Watch a few beginner tutorials, you will probably need more knowledge than only repositioning objects before you can try to achieve something in blender. Just google "blender beginner tutorial". $\endgroup$
    – Ezra
    Jun 20, 2015 at 15:31

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