Hi!
After completing my Swingloader Mk III, I haven't had a lot of time to build something big, so I tried my hands on something small instead.
I made this a couple of days ago, trying to get a lot of technical (albeit simple) features into a small package!
I tried to make it a scale comparable to that of this years' constructon crew set, and here it is next to that set's excavator
Most of the features are explained in the next picture, except the second stage of the dipper, which is lifted manually.
Here is an underside shot, showing the track extending mechanism. Not the sturdiest of designs, but more than enough.
Higher resolution images can be found in my Bricksafe folder
I will be making an LDD file, if anyone is interested..
Lastly, I actually made a video BEFORE making the topic, so here you go, showing all features (I think)