honestly just build something cool and work on it from there yer you can go down the road of engineering a superbot made from mythical metals or you can buy a load of hdpe plastic and build a brick and have some fun i like the sketch up very nice

dead metals saw blade was a specialized friction saw that had hundreds of little teeth that only nibbled at its victim but because of the number of them they could go through just about anything its the same saw the fire service use to cut up cars when rescuing people because it can cut just about anything