This is the slide show we use for the FLL Coaches Training workshops. Updated for 2011. In Powerpoint 2007 format. A free viewer is available for this file.
Directions to build a four wheel drive robot base that uses part of the standard educator three-wheel base then expands on it. Uses two motors so center-pivot turning is preserved. A huge "thank you" to Ian and Evan who provided it.
This PDF file has a visual glossary of LEGO parts.
Presentation from the FIRSTWA NXT training session presented on September 27, 2008. [updated 9.30.2008]