This home experimenter is very talented and also got some help.  Here is a bit more on his lightsaber and how it was made:

I had the sword host custom machined by a talented machinist (who goes by Ehgemus on the forums), and I got the laser diode here: https://sites.google.com/site/dtrlpf/…

For the drivers I stacked two V7 X-Drives in parallel to get 4.0A.

ALWAYS use laser goggles when working with lasers over 5mW! http://www.survivallaserusa.com/Eagle…

What would you do with a real lightsaber?  Would you have a Star Wars battle meetup and go to a safe venue and battle it out?  Or perhaps use the tool for home self defense?  Or just learning purposes so other people could become educated on lasers and how they are made.

We hope you enjoy this video and thanks to the laser guy styropro for making this!