your blue print is what you use for your flashlight.  The blue print is important because it gives you they measurements of you tools. For example how long your wire should be. Also the blue print is imoptant because it gives  you a idea of what your flashlight will look like at the end of the project. It is very important that you don’t lose the blue print. If you lose the blueprint then you won’t be able to hand in your project when you finish.