This quest is acquired by traveling to the Garrahan Mining Headquarters and finding out the secret of their invention. The Project Manager's terminal in the lab contains the schematics necessary to craft the Excavator power armor. The quest requires the player to construct all six pieces, place them on a frame, then register it with the mainframe (next to the R&D lab at the headquarters). Doing so unlocks the armor's mining bonus and completes the quest.
To build the armor, the player needs the following total amount of resources: