Ohk so I'm looking to build my own laser at some point and I'm just trying to get some information on what I need to do this. What are ALL of the parts that I need to build a laser from scratch?
qumefox posted a good basic list of what you need but also you need to make a decision on what type of laser your going to build and then you can more effectivley choose the components you will need for your build.
And of course get the approriate googles for the type of laser your building.