Quote Originally Posted by Enkidoh View Post
----
Ya at this point I can only guess the ARC/BRD character would passively collect a large amount of arrow supply when players are offline.

Machinist atleast explained it to be the Aetherconverter they carry around which functions as a portable 3D Printer that use Aether as its resource to "Print" out the stuff MCH uses. If you can make it then the Aetherconverter can replicate it but of course as MCH Job storyline stated there are limits to the Aetherconverter due to how much information it can handle until it is adjusted. Though I think the lack of space is mostly due to the Giant Satellite the Aetherconverter has programmed into it to create whenever the MCH use its LB3 being Satellite Beam.