My son built them by the picture and added something of his own. This one, for examble, is Grasshopper. It has two motors, but you need to make sure that both motors spin in the same direction.
LOZ Big-Eyes
My son built them by the picture and added something of his own. This one, for examble, is Grasshopper. It has two motors, but you need to make sure that both motors spin in the same direction.