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I've created a replacement radiator knob in blender to get it 3d printed.

I've used array modifiers to replicate shapes mirrored around the center. And I have used a Boolean modifier to create the notches for more grip.

The problem is that when I export to a .stl file the shapes that I have hidden use the "eye"-buttons also appear.

How can I remove them when exporting?

What it is supposed to look like after exporting: picture of what I made in blender

What is looks like after exporting: picture of the exported .stl file

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Before exporting, press A in object mode to select everything, this won't select any hidden object.

Then while exporting, check "Selection Only" on the right to export only the selected objects.

enter image description here

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  • $\begingroup$ Yes! it worked. Thank you! $\endgroup$ – HolyGuacamole Dec 18 '20 at 15:38

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