Too small for System, too big for Mini, I call this a Macro Mini.
About this creation
This sandcrawler was originally done for a contest at FBTB.net. The objective was to create a MINI Sandcrawler, with a bonus if you could use the treads shown here. Not one to pass up a challenge, I did a few calculations and figured that to make it look good enough, the crawler would have to be much larger then I'd originally thought. So this Sandcralwer measures 7 inches by 4.5" by 2.5" and weighs in at 12 ounces. A bit big, yes, but then compare it to my full-size one. :)
Oh - and I won the contest. :)
The treads caused a lot of frustration for a while, but eventually I decided that the only way I could make them was if they could not move. So no gears this time - I just wrapped them around thin technic lift-arms.