Location: This schematic is inside a chest in the basement of a residential house in Ashbury at 12 Trellis Way, easily recognizable for the guy standing in front of it that will ask to retrieve his technological enhanced armor. Automatons and Mechanized Arachnids can be disabled and turned into items if you can get close enough to them without them becoming hostile (use Prowling, Invisibility spell/scroll, Whysper's Gem, etc). There are 16 Automatons in the Vendigroth Ruins and 1 in the inventor's basement in Ashbury. One can easily build an army this way: https://i.imgur.com/sFVBTHm.jpg
Components are acquired by fully graduating in Mechanics and Smithy.
Effects: A melee fighter, doesn't add to followers' count.