The Molecular Level The Molecular Level is a main story quest and achievement / trophy in " Fallout 4 " . Detailed walkthrough . Before the Sole Survivor can utilize the freshly acquired Courser chip , it needs to be analyzed by someone familiar with the the Institute ' s technology . The best person for the job happens to be Tinker Tom of the Railroad . If the Railroad have yet to be encountered , follow the Road to Freedom to find the hidden Railroad HQ . Once at Railroad HQ , speak to Desdemona and agree to her terms . Give the Courser chip to Tinker Tom , who will crack the encryption and provide the code for the chip . If Tinker Tom is dead , there is a file on his terminal that will crack the encryption . Return to Virgil . He will offer the plans for the teleporter in exchange for a favor : if the teleporter works , the Survivor must retrieve a serum from Virgil ' s old laboratory inside the Institute to cure his FEV affliction . Accept his terms and receive the plans . However , the teleporter is no simple machine . Expert help and a lot of resources will be needed to construct it . At this point , the Sole Survivor needs to make a choice to enlist the help of one of the three factions ( the Minutemen , the Brotherhood of Steel , or the Railroad ) . Speak to either Proctor Ingram ( BoS ) , Sturges ( Minutemen ) or Tinker Tom ( Railroad ) and arrange for the construction of the teleporter . The chosen expert will travel to the building site and explain the requirements and necessary materials for each of the four components : the reflector platform , beam emitter , control console and relay dish . If the player character chose to ally with the Brotherhood , the teleporter can be built at Boston Airport or any owned settlement , excluding Home Plate , Vault 88 , The Mechanist ' s lair or Nuka - World Red Rocket . Even though the Railroad suggests building it at Mercer Safehouse , it is not required to do so . Constructing the signal interceptor . The player character can build the signal interceptor in any settlement . Build the stabilized reflector platform first in the target settlement , then return to Ingram , Sturges or Tom and speak to them again . They will give the Sole Survivor the second list of schematics to complete the signal interceptor and travel to ( or spawn at ) the settlement used as the build site . Settlements well suited for the build site appear to be Boston Airport and Sanctuary Hills due to large flat areas and abundant spare building capacity . If building with the Brotherhood ' s help , Elder Maxson ' s permission is required before activating the signal interceptor . He will run from Boston Airport to the chosen settlement . Maxson might camp at allied settlements for the night along the way . ( One might be able to catch him en route to speed up the permission check ; he will be tagged on the Pip - Boy for his entire journey . ) The easiest option is to wait / sleep for about 8 hours for him to appear at the settlement or simply build at Boston Airport if using the Brotherhood for help . Requirements for the teleporter : When everything is built , linked together and supplied with enough power , the teleporter is ready for use . Talk to the expert and get ready for the voyage . The expert ( of the assisting ally faction ) will instruct the Sole Survivor to step on the platform and the teleportation process will commence .