Using lego or vex robotics pieces for Chassis

[mkothapa]

I noticed images in Gallery for Wheeled Vehicle where the chassis includes lego pieces. Similarly, can teams use the non-electric and non-electronic pieces from Robotics kits to build Wheeled Vehicle? Materials are not explicitly mentioned in the rules manual. A confirmation would be very helpful to guide our teams.

[knightmoves]

You're right - build materials are not mentioned in the rules, therefore you can use whatever materials you like.

The general rules do say that a device must be built by the team members, so showing up with a purchased car that you've attached an elastic band to might get frowned at by an ES. But using lego bricks, vex chassis kits etc. is fine.