The gulf between stars was vast. Sending information across that distance happened the fastest when translated through idiom and personal experience by a member of the Adeptus Astra Telepathica though the simple fact that it was a psychic communication meant that there was some loss of information as the receiver parsed through what they had been sent. To do so safely, securely, and with no alteration of the message required a courier. But even in such a Subsector as Lativa where Navigators were not strictly needed for reasonably timely travel such transits were not rapid. A lucky vessel may make a leg of it's journey in less than a month's time, should they not be able to avail themselves of the Navis Nobilite, which makes for lengthy conversations indeed.
In light of this restriction it should be of no great surprise that the various worlds of the Imperium are not well connected on anything lower than a policy level.
The military aid between the Adeptus Mechanicus Outpost of Lexicalum and the Civilized World of Calavar pushed the two comfortably distanced branches together in a way that they had never had to before.
Calavan Adepts, living among the common citizenry and being recruited from such into the outermost mysteries of the Machine God, were best described as Humanists. They believed that the Human form was inherently desirable for it's ability to generate intelligence. It could be augmented by mechanical devices but it was not automatically the superior choice.
Lexicalum Adepts, almost universally coming from the regimented environment of their station home, were typically orthodox in their views of the Cult Mechanicus. Human life has no intrinsic value save for the knowledge it has accumulated and as such as their members increased in seniority they became correspondingly cyberized.
This sometimes lead to situations where a fully Human member of the Calavan order meets with their opposite and onlookers would be hard pressed to guess that they were of the same species. Such an event took place in the "defense" (necessity being a powerful motivator even to Orthodox members, and as the new ship class held no advanced technologies there were better things to be concerned about; namely, the Chaos influence in the Subsector) of the corvette hull the Calavan Adepts had designed and subsequently built on request of the Imperial leadership of the world. The Lexicalum order had sent one of their junior Magi and had been greeted by a senior Calavan Adept to show the alterations and additions to the maintenance platform that was now used to birth the new craft as well as the schematics for the Resolute.
Said alterations caused minor complaints from the five eyed, digitigrade Magus but were humbly retracted when the Calavan sharply asked where a real shipyard could have been found. The use of a number of weak shields for ship defense earned the equivalent of a raised eyebrow but nothing more for it was simply existing designs used in novel ways. That they worked as well as they did was a surprise and earned an approving nod from the Magus.
As it turned out, with the loss of reliable contact with their home Forge (although to the best of their knowledge it had not yet fallen to Xenos or Heretek forces, which came as a surprise to the Calavan Adept considering the situation to the North) their senior most Magus had declared a renewed expression of the Quest for Knowledge. In part it was forward-looking bureaucratic cover in order to turn to building and operating a naval force of their own due to past treaties with their home Forge with regards to limiting competition but there were other effects as well.
What this meant for Calavar was that the people of Lexicalum were undergoing their own turn to external affairs rather than continuing as they had. And should Calavar decide to turn over schematics or examples of advanced technology recovered from worlds overrun by Orks or taken from the cores of the plague of Space Hulks descending on the Subsector it would go a long way to smoothing the transfer of schematics that Calavar could potentially produce on it's own.