Knex Cassette Transformers Instructions By 18efroese in LivingLEGO & K'NEX3,903124Introduction: Knex Cassette Transformers InstructionsBy 18efroeseFollow More by the author: About: Mechanical Engineering. Inactive? More About 18efroese » To transformer just follow these pics If you have any comments or recommendations just comment! Step 1: Razor BeakStep 2: RobotStep 3: Wolf/dog