Are there any vex robot plans or project assembly books for making various robots
especially from the starter kit.
Although I have not seen any Vex specific project books, there are some hobby magazines that mention Vex models. These include Nuts & Volts, SERVO and the new ROBOT magazine.
VexLabs ought to make an “Additional Ideas” add-on pack with a few more robot ideas. It could just be a PDF that people print out.