3D mapping in Arduino

Hello,
For a long time, I've been researching about how to make an arduino map the environment and be able to react to it.
Could you please recomend me any website that can help me out?
Thanks

Search the forums for SLAM - that should get you started. Forum user Crosh has posted about it quite a number of times.

Yep - assuming that is what is wanted (which seems reasonable).

The problem would be doing it with an Arduino - there are some "tiny SLAM" implementations out there, but I tend to wonder if you'd be able to do anything more with the Arduino after implementing one (SLAM needs a lot of memory - in the case of the Arduino, SRAM).

And that would be for a "simple" (quoted because SLAM is anything but simple) 2D SLAM implementation - 3D SLAM might not be possible with an Arduino (heck, there aren't many implementations of a 3D SLAM algorithm period - I doubt anyone has done a tiny one yet - but I haven't looked).

As wildbill noted, alrro, search the forums for threads where I have mentioned it. You might first start here, though:

Note, BTW, that SLAM is not an easy concept to wrap one's head around, unless one is well versed in both linear algebra and statistics/probability mathematics - I learned that the hard way after taking the Udacity CS373 class online (something I recommend, btw - it will get your feet wet, at least).