as some of you maybe know, I am relatively new to Blender.
After I worked a lot of hours on my level in Blender, I ended in having a lot of "loose" vertics, which are on the same (or nearly the same) position then another vertics, but not connected to each other. (Don't know, if this is the right Blender-terminology
I know there is a function called "Remove Doubles", but it doesn't help in my case, to remove all of this unconnected vertics.
Here an example:
I have some cubes...
...where some of the vertics are not properly connected. (For demonstration I moved the vertics, so you can see it better)
If I first select the whole model ("A"), and then I choose the "Remove Doubles" function, only some vertics will be connected properly. (Maybe, because the vertics are not at the exact same position?)
When I correct the value at "Merge Distance", it works in the example...
...but if I do the same on my real level I am working on, a lot of unwanted merging happens (Especially on some very detailed meshes I added).
So I ended in starting merging all the unconnected vertics manually, with selecting them, and using the Alt + M
I have maybe some hundreds of unconnected vertics, where I have to do this (or want to do this - don't know if it's really necessary in all cases). So this would take me maybe some hours.
So 2 questions to you guys:
1: Do you have any tips for me, what I can do instead, to avoid this manual work? I have searched the Internet already a few times, but I always read that the "Remove Doubles" function should be used in such cases.
2: How can I avoid, to get this unconnected vertics at all? I'm using the "E" function a lot, to extrude edges (and sometimes also faces), and I think most unconnected vertics was generated by this. I also use "F" and "C" a lot to build my level, but sometimes I can't prohibit to use "E".
Maybe you can "enlighten" me.