Is there a way to generate an array object in exactly the same location as the original as per the following YouTube video (around 4:00), to enable me to rotate it 90 degrees around the empty and snap it to the original at the edges?


I am not sure how he did it in the video - here is my file - img src="https://blend-exchange.giantcowfilms.com/embedImage.png?bid=880" />](https://blend-exchange.giantcowfilms.com/b/880/) THanks


1 Answer 1


The principle outlined in the video is the following:

  1. Create a plane (shift+a mesh > plane) with default size/radius 1 and place it at 0, 0, 0
  2. Create an empty (shift+a empty) and change its coordinates to -1, 0, 1
  3. Select the plane
  4. Add an array modifier
  5. In the modifier settings, select Object offset and in the field below select the Empty (just like in the video)enter image description here
  6. Increase the count of the modifier to 4 and voilàenter image description here
  7. If you want to move your mesh around, either move it with the empty or hit Apply in the array modifier and the mesh will be independent from the empty but also you cannot modify the array modifier anymore.

Now there is a mirror modifier for some reason there. So before Step 3, add a mirror modifier and you will see no change. You have to go in edit mode and move the vertices to the right (or left), then you will see the mirror double. I didn't follow the tutorial so I don't know why he's doing this.

Simple technique, but it's really far from being intuitive ! Thank you for the video, I learnt what this object offset is all about. You can make all sorts of patterned shapes like cogwheels with this.

  • $\begingroup$ Thanks for your help. He actually started with a cube and then deleted all the other faces, not really sure why he didn't start with a plane. Anyway, I realise my mistake was that I didn't snap my cursor to selected and make sure the origin of my cube was at the center of the grid etc, so when I did the rotation of the empty, the planes were out of alignment. Thanks again. $\endgroup$
    – A Allen
    Commented Jan 24, 2016 at 2:32

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