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I've just started using Blender to try to make some basic 3d models for games. I must admit I'm finding it very difficult to get to grips with, but AFAIK it's the best 3d software to use with Unity for animations etc. so I am going to keep at it (unless anyone can recommend using alternatives, which will import easily into Unity).

Basically like the title says, i want to merge cubes. Im making some block artwork and its done with layers of cubes.

I've spent ages try to link them, tried CTRL-J and lots of stuff on 'W' menu. And some other things, I can't believe its not just a case of dragging mouse over everything and selecting merge tbh.

Here is the picture to illustrate what I mean:

blender cubes

So my end result I need is for this shown above to be a 'seen' as a single piece.

EDIT: So thanks for the answers, I've tried to follow along but I find the UI very hard to understand still. I'm looking for this View Header so I can change my merge settings as described:

blender2

and

blender3

stillcantfind

Thanks to advice from these helpful fellows, here is the finished article :) mario

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    $\begingroup$ I don't understand exactly what is your problem: pressing CTRL-J, instead of? a button? and what W menu stuff are you repeatingly doing, and why? your question title asks about 2 cubes, but you can also merge "n" cubes in one go, select them all and press one tim eonly CTRL-J, if that helps... $\endgroup$
    – m.ardito
    Commented Jul 11, 2017 at 7:06
  • $\begingroup$ Possible duplicate of Join two meshes at the intersection within edit mode $\endgroup$
    – AdamTM
    Commented Jul 11, 2017 at 8:22
  • $\begingroup$ Ctrl + J for combining objects only works in object mode and you are in edit mode. You should press tab then try Ctrl + J again. $\endgroup$
    – Striar
    Commented Jul 11, 2017 at 12:59
  • $\begingroup$ I tried pressing Tab, holding CTRL-j; holding my breathe, counting to three whilst standing on one leg and rubbing my tummy in a circle shape, nothing worked. @m.ardito, my question is quite clear: I want to join the two cubes together. Thanks for your respsonses and help though. I noticed I was able ONCE to hold CTRL and mouse around the two cubes, it then allowed me to move them simultaneously , but next time I tried to grab them they where separated again. $\endgroup$
    – Big T Larrity
    Commented Jul 11, 2017 at 15:10
  • $\begingroup$ that 'duplicate' mentioned above doesnt seem to have any thing about two cubes in it and is talking about meshes that overlap or something. i just want to bulk these two cubes into one piece. So that once I have 50 cube layers like this I can make it into one model. The app is called Blender ....fs, the irony $\endgroup$
    – Big T Larrity
    Commented Jul 11, 2017 at 16:07

1 Answer 1

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two options - first, try turning on AutoMerge Editing option in the 3d viewport header in Edit mode so that vertices moved into the same position get merged. Might be able to just to press G to grab without moving, confirm action with LMB, and get the vertices to merge if Removing Doubles is not merging good enough when increasing the threshold in the Last Operator panel (press F6 to open after operator execution).

Merge in header

Second way can be to use the Array Modifier to model with Merge checkbox in modifier's options enabled, and then apply the modifier in Object mode.

enter image description here

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  • $\begingroup$ I have been trying to put your advice and instruction into action but I've failed at the first hurdle :\ I found two View menus once I was in Edit Mode, but nothing seemed to include Enable Merge or anything like that. I've edited my question to show more images and explain what Im stuck with. Thanks again for the help $\endgroup$
    – Big T Larrity
    Commented Jul 11, 2017 at 16:32
  • $\begingroup$ I've just removed the 'Accepted Answer' thing purely because I still dont know how to do it and still need help. I was going to leave it as you clearly deserve it for such a good answer but it wasnt quite clear enough for me (a noob) to follow. Soz $\endgroup$
    – Big T Larrity
    Commented Jul 11, 2017 at 16:37
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    $\begingroup$ First picture shows the icon tool tip while I hover over the Merge button. That is for merging AFTER you have joined them in Object mode and then enter Edit mode. You then need to select a row of verts and then press G to grab, but confirm without moving them - and you will see the vert count of the object decrease. Rinse and repeat. $\endgroup$
    – Craig D Jones
    Commented Jul 11, 2017 at 17:29
  • $\begingroup$ The Second Picture shows me hovering over the Merge option in the Array modifier - this method involves only one cube and an Array modifier to control how far it will extend, and with Merge turned on, the modifier can be applied in Object mode and there will be no duplicates as long as the spacing wasn't changed. $\endgroup$
    – Craig D Jones
    Commented Jul 11, 2017 at 17:31
  • $\begingroup$ thanks for your continued help, but sadly I still cant find the merge button. Ive posted another pictgure showing how my menu is much different $\endgroup$
    – Big T Larrity
    Commented Jul 11, 2017 at 19:01

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