Yeah; but I would sort of like to see:
TL 12 Alloys & TL 12 Electronics -> (Advanced Manufacturing Plant -- TL 12 Laser Components) -> Laser Weapon Components (TL12) -> (Advanced Manufacturing Plant -- TL 12 Laser Weapons) -> TL 12 Laser Weapon
as distinct from:
TL 12 Alloys & TL 12 Electronics -> (Advanced Manufacturing Plant -- TL 12 Consumer Appliances) -> Consumer Appliance Components (TL12) -> (Advanced Manufacturing Plant -- TL 12 Consumer Appliances) -> TL 12 Washing Machine
It is okay for stuff up to the 'Commodity' level be (to a degree) generic at a particular TL; these are basic stuff that go into everything. But specific 'Finished Goods' should require specific components; it creates dramatic situations (well, as dramatic as economics can be) where stuff can run short. And it makes building a 'complete TL 15 civilization in a box' harder to do, which is a good thing; there are just too many pieces to conveniently carry around in a back pocket.
I usually just do this at the Referee-level. When I design a group of Manufacturing Plants to scale up over time, I add 1 ton of production of each of the things that Manufacturing Plant can produce.
As to TL 17 being post-scarcity: Maybe sooner in real life; but Traveller does not really seem to have a 'post-scarcity' level. I am okay with waste being reduced at every TL, but even at Traveller maximum (35?) I think there is still some (very little, perhaps) waste and loss. My initial idea was something like (1+(35 - TL)) / (2x(35 + TL)). I dunno; that gives about 50% waste at TL 0 and only 0.7% waste at TL 35 -- but maybe that is too much waste at TL 35, or just not extreme enough in general
CSC pg. 7,
"As a general rule, the listed fabrication chambers can
fully manufacture any non-animate item available two
Tech Levels or more prior to their own Tech Level. For
instance, a basic fabricator could fully manufacture TL6
items, including auto pistols and even vacuum tube
radios, while an improved fabrication chamber could
manufacture a transistor radio, portable computer or
other TL8 electronics. This progression holds until the
debut of the TL17 advanced fabrication chamber, a
device capable of turning a society into a
post-scarcity
civilisation, with nearly any item available on demand,
assuming access to the proper raw materials."