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I am working on isometric design that will be printed on the 1000mm x 2000mm Roll Up. Design includes lots of similar paths that should be perfectly aligned and create isometric 3d scene (image 1.)

enter image description here

I made diagonal guides (30° and - 30°) in order to create paths and aligned them together. It worked fine until I find out that some paths were not aligned as I wished and when zoom in the scene white gaps can been seen. Each path was created from original one (Alt key - Select the path) moved and aligned manually to the next neighbour.

enter image description here

However, now I am trying to find the best solution to adjust them and align perfectly without too much manual tweaking. Is there any way to automate the process and connect neighbouring anchors? I know there is a function in most 3D software named “connect vertices”, but is there something similar in Illustrator?

I am using Illustrator CS5 and CS6.

Thank you.

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    Nice picture i really like it. Tip: Do not accept your posts so fast wait if theres somebody with a better answer first. This gets you more views and possibly better answers (not my one its more of a how to do this in future kind of thing). – joojaa Jul 30 '15 at 9:57
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I won't directly answer the question, I will, instead suggest an alternate workflow. The benefit of this workflow is that it is guaranteed that you will not get this problem.

  1. First build a isometric grid. Make vertical lines and rotate the field 2 times with 120 degree offset. Tip: If you make the lines uncolored then you can just directly color the image.

Isometric grid

  1. Then use the shape builder tool to make your shapes. TIP: When in shape builder tool you can assign colors to the fill and stroke, before dragging. That style will be put on the shape.

Screen capture

Image 2: Timelapse of building with shape builder.

Now you are guaranteed never to hit and miss. Working speed is also most likely much faster.

  • Great tip Joojaa. That looks a lot faster than the OPs original workflow. – Dom Jul 30 '15 at 12:49
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    @Dom i am circumventing the fact that one can not make a custom noncartesian snapping grid in Illustrator. Using guides is ofyen a hit and miss kind of thing. And the API does not provide tools for this kind of stuff, without reimplementing line and pen tool. – joojaa Jul 30 '15 at 13:20
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My way to align/join etc multiple points is as follows:

Press "A" and choose the points in question -

enter image description here

Now, right click and choose Average->Both:

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+

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The result:

enter image description here

gif:

enter image description here

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    In addition to this... switching to Outline Mode often makes click-dragging to select multiple anchors much easier. – Scott Jul 30 '15 at 9:27
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    @Scott I've thought to mention command+Y but thought the ts knows about it... – Ilan Jul 30 '15 at 9:32

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