Hello!

some months ago (sometime last year) I built this 2x2x1 with LEGO. At that time I didn't know about any 2x2x1 mech, so I came up with my own (I later realized it was one of the simplest and most common-used mechs ever...) I used the simple covering-the-middle-layer-of-a-1x2x3-mech. The mech is easy to come up with, but to build it in LEGO is harder To make the two half cylinders inside I used eight technic curved panels that I got from the crane truck.
It took some hours to build it.

The turning is horrible, and the color-scheme is 'wrong', but it's fully functional

here's some pics:



And here's a pic of the mech:



I hope you understand, and if you have enough LEGOs - go make your own!

video added: http://www.youtube.com/watch?v=lgiTK1k4jGA&lc=1s-CXOQW0ssRc3u3g-8hXQWSVofOVNvEFxeSBZR8mHg&feature=inbox

Now I gonna go and rebuild it into a 1x2x3



P.S. No LEGOs destroyed or glued

[edit]video added

Looks pretty cool. I thought the usual mech was, however, a bandaged 2x2x2 which was then extended.

Yeah, that's the most usual way to make, but I think this is the most usual mech if you make it from scratch