The Snowcat
15 Feb 2013
Quad Track: IR-Ball Seeking Crane
21 Mar 2012
H.E.H 1
26 Aug 2011
A Monorail train
27 Feb 2010
Carter the Caterpillar
10 Oct 2009
CatBike
12 Jun 2009
NXT SUMOBOT I
20 Apr 2009
Swifferbot Unleashed
26 Dec 2008
Accordion Car
29 Nov 2008
Terrain crawler.
12 Sep 2008
Maze Navigating Tracked 'Tribot'
08 Sep 2008
U.T.E.T. (Ultimate Tiny Explore Tank...
21 Jul 2008
trashbot
20 Jul 2008
NXTapillar -NXT Caterpillar
12 May 2008
Caterpillar
04 Jan 2008
Caterpillar
08 Feb 2007