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I am trying to join this cube.

enter image description here

With this cube with a Boolean Union modifier. enter image description here

The result is always this fuzziness in the final mesh. WHY? I have checked for correct face orientation and Scale and Rotation.

enter image description here

Here is a file upload and screenshot of the Boolean as requested.

enter image description here

Below is a successful joining of 2 intersected objects without fuzziness as I explained below. enter image description here

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  • $\begingroup$ Can you show a screenshot including the boolean modifier? Also, can you upload the file so we can see what's happening? $\endgroup$ – PJM Design Dec 18 '19 at 16:33
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    $\begingroup$ Do you have faces/objects overlapping? This looks like z-fighting. See: blender.stackexchange.com/questions/5441/… $\endgroup$ – Ray Mairlot Dec 18 '19 at 16:34
  • $\begingroup$ I added the file and screenshot as requested. Thank for the help. $\endgroup$ – ronin074 Dec 18 '19 at 17:21
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You need to hide object used in Boolean Union operation. As for now you have "two" objects in one place.

Remember to hide it also for render, or apply Boolean and remove it completely.

enter image description here

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  • $\begingroup$ I did as you said I hid one of the objects and in fact yes the fuzziness vanished. However, the 2 objects were still visible as separated in the collections menu. if ii made the object visible again the fuzziness returned. So after do I have to join the 2 objects? I tried it and it seems the object united and the mesh of the second object (the one below) started from the face of the first object. I posted an image of this above in the main question. $\endgroup$ – ronin074 Dec 19 '19 at 18:10

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