That said, there is nothing in the rules of the game that requires a lightsaber to be built by a force sensitive person.
I wasn't answering a rules based question. I was explaining how the process has been depicted in the source material. I'm aware of what the rules say. The rules leave it up to the GM and if you really want to do it then go for it. But based on the source material using the Force seems to be a key element in constructing one. Not my opinion, just posting what has been presented by the canon sources.
You seem to be of the opinion that a droid can't make a lightsaber, which is cool for your table.
I'm not really discussing my table or really my opinion. It's not my opinion that the Force is an important part. It's how lightsabre construction has been depicted. You asked me to back my position up with source material and I have. You asked for proof and I showed it to you. What you do with that proof is your business. But ulimtately according to the canon material using the Force is a key component to making a lightsabre. There's a very real chance that the reason we never see a droid make one (and there have been chances to depict a droid making one such as one episode of TCW) is because they can't and the creators see no point in showing a droid failing at the task as it wouldn't move the story forward any.
Don't ask for proof if you don't really want it.
>.< Ok but, "proof" would imply a hard-set rule. Which is what I was looking for. Listing all of the examples of how a force sensitive makes a saber doesn't prove a non-force sensitive can't, it just provides a precedent.
My apologies though, I was asking for either definitive in-canon proof (which I haven't seen yet) or an in game rule. My question stems from a hypothetical in-game possibility (that the rules allow) and what possible outcomes would come of it. You're suggestion is obviously "it doesn't work", which is cool and supported by the precedent provided by canon. Since this is a RPG that often challenges that precedent, I'm still curious to get other ideas on what a droid (or non Force user) made lightsaber would look like.
It has repeatedly been said in many books that Jedi have to attune the crystal to get it to work. Hell it is subtly said by Huyang that you have to "wake" the force in the crystal to get it to work.
THIS was the missing link I was looking for, good catch. This episode is actually interesting for two reasons. 1) Huyang implies that a Kyber crystal is useless without first being "awakened" by a force user; and 2) Hondo is attempting to steal the Kyber crystals because they are worth a lot of money (the implication being that the crystals are worth so much BECAUSE you make sabers from them). This could mean that either Huyang is lying, thus the crystals are indeed still usable and worth a lot of money. Or that Hondo was mislead/the buyers were mislead/the buyers were force sensitive. I'm inclined to side with Huyang.
All this, combined with the info and sidebar on page 195/196 of FaD, leads me to believe that while working with a kyber crystal is very much a possibility for a non force user, it is far more difficult and probably time consuming. Attuning to a kyber crystal however, is impossible. To be more specific, pg. 195 describes changing (installing) a new kyber crystal as using up the users Force energies; thus making it impossible for a droid or non-Force user to swap or initially install a kyber crystal attachment. (This would still allow a droid like Huyang to help modify an already installed crystal, but not install the attachment himself.) Now of course the Force is a mysterious thing, so maybe it decides to give a droid a working crystal or something, IDK. But otherwise the general rule is that if you can't use the force, you can't install a kyber crystal attachment.
I'm going to assume "training emitters" are exempt from this, as they don't seem to require a crystal. One part of the book describes it as having one, the other doesn't. Plus it isn't Restricted and only cost 100 credits(!), which seems like an oversight if every Training Emitter requires a force sensitive adegan crystal...