Questions about MIRROR modifier for people who know how to use it.

How do you control if the mirror is put on the ‘right’, ‘left’, ‘top’, ‘bottom’, …etc side, of your object?

If you have an object (whole object) and you want to work on only one side, how do you ‘mirror’ the other side without ‘creating’ a new side (the other side is already there)?

If you create one side of an object and ‘mirror’ it like in question 1, can / how do you ‘un-mirror’ it - so you can then work on one side without effecting the other, but the mirror side is still there?

Can you delete the ‘mirror’ without deleting your original side? How?

Thanks.

How do you control if the mirror is put on the ‘right’, ‘left’, ‘top’, ‘bottom’, …etc side, of your object?
Select the mirror axis in the mirror modifier settings

If you have an object (whole object) and you want to work on only one side, how do you ‘mirror’ the other side without ‘creating’ a new side (the other side is already there)?
Delete half the object of it’s symmetrical then use the X-mirror option in the toolshelf

If you want to break the mirroring then apply the modifier

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@Richard M. Thank you for the reply.

anyone else on this:

So I started with a plane, I modeled what I wanted [one side of it], I went to mirror the other side - no go, x, y, z, nothing works, the ‘mirror’ stays on the same side. If I set the point of origin to the 3d cursor after I try to get the cursor as best as possible on the edge of the working ‘side’ - guess what… the ‘mirror’ works but the working side disappears!! I strongly suspect that this is all because this started out as a plane.

Any ideas on how to make something like this work?

YouTubers are always modelling with planes!

I just did something similar to what you want to do. Go into Object mode and select all the objects that you want to mirror. Press Shift-D to make a copy. With the copy selected, go to the Object menu in the 3D header and select Mirror. Now select the axis you want them on. They will change to mirror on that axis. At this point, I don’t know any other way to place them other than manually.

@Anthony F, thank you for the reply.

Anyone else on this:
If you do as Anthony F suggest you end with two objects; how do you go about making them ~talk~ to each other?
if you hold SHIFT while selecting both pieces you get this:

/uploads/default/original/4X/c/3/0/c30293dfbd5f480e670ea47848c33643aaec217f.pngstc=1

but only one is really selected as can be seen here:

/uploads/default/original/4X/7/8/f/78f36ebc6a0857e9bd0d159d305d70b98a9abd07.pngstc=1

I want to weld them together, but can not. Because I can not select vertexes on both of the objects to merge them. They are like on different Planes.

Any ideas on how to weld them together and make them one object?
Any ideas on to how add volume to such a creation? Again I’m almost certain that blender is treating is object like what it is, a plane with no volume, [need to PUMP UP THE VOLUME].

edit:…that blender is treating these objects…

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You need to Join them into one mesh first. Do this in Object mode. Then go into Edit mode and Merge the vertices of the two planes.

@ Anthony F, Thanks this makes modeling in blender easy!

Glad I could help!