The first part of manufacture is drawing an accurate 3D model of your final design using a 3D software. There are many softwares available and the one you will use for your lamp project is Onshape.com you should make sure you document what your 3D CAD by taking screen captures and putting them into your keynote.
During manufacture, you should keep a record of all the steps you take to complete the manufacture of your Lamp. Make sure you fill in your Keynote as you go, take lots of photos and put them in your keynote. Use text notes to explain what you have done, what equipment you used and the skills you have learned. Make sure you describe and explain each phase of manufacture. Think of it as being like telling a story.