This is the Chimera Self-Transformer: Iron Hide. It's called a Chimera because it's made of 3 mediums: K'nex, Robotics, and Paper. I didn't include instructions because of the fact of that not many will have the exact same robot I used for my transformer. But in the video, it shows the mechanism for transforming.
Step 1: The Video
Step 2: Coming Soon...
Taurus: The self-invented Lamborghini to bull transformer
Sorry I don't have pictures.