Well, Factory is closed right now while they revamp it to not include Dev threads. So...that part is out. For now.
As far as they go, if you're using a plain, vanilla lightsaber you can just say you built it. No thread needed. I personally prefer having threads for items like that, as do some others, and as such they make build threads. Depending on the special features you include, you may be asked to submit your lightsaber to the Factory for PVP balancing, and if it's excessively overpowered will be asked to tone it down and/or make a dev thread for this. Of course, that last part was when the Factory was open and dev threads were a thing, so we'll see there.
What kind of features were you looking to have in your lightsaber?
[member="Rakieh Atur"]