I call the chassis PLAFIL because its fully filled with the PLA material.Its comparable with a Plafit chassis, only this one has steering.Its still V1.for an update i will study the one an English guy did on  shapeways..http://www.shapeways.com/blog/archives/1858-3d-printing-slot-cars-for-sloppy-70s-handling-and-swagge...already.Combines with the already uploaded gears design...