Knex Optimus Prime Transformer By 18efroese in LivingLEGO & K'NEX3,416125DownloadFavoriteIntroduction: Knex Optimus Prime TransformerBy 18efroeseFollow More by the author: About: Mechanical Engineering. Inactive? More About 18efroese »This time I made a custom head for Optimus. Any questions or recommendations just comment!Step 1: BodyStep 2: Arms and GrillStep 3: HeadStep 4: LegsStep 5: Pulling It All TogetherStep 6: Transforming