Box inside box dissapear in STL

[Anonymous]

Hello,

I have a simple design - box inside box. Inner box have hole in it. When I do export to stl format for 3D printing everything inside outer box dissapear. Please what I am doing wrong?

[TheCADWhisperer · Accepted solution]

At what level are you exporting?

At the top level Component?

Since the two bodies are flush on one face, can you Combine into one?

Attach your resulting *.stl file here.

Also, your sketches are not fully defined and there is a small step in the last extrusion.

Is that intended?

[Anonymous]

Oh, stupid mistake. When I select "File -> 3D Print" than I select the whole model with the mouse, but actually select only one body. So combine bodies or select bodies group did the trick. Sorry for waisting your time, very stupid mistake. Thank you very much.