Material Matters Influenced by an autonomous-deposition machine we started speculating about a mechanic fabrication on-site using the site`s material (sand). The task of the machine is to re-arrange the existing surfaces by collecting from one node and depositing from the other, piling sand. Once the surface is arranged glue is poured on strategic points of this surface. The choice of the points (coordinates) are yet to be discussed as it is an important parameter of our fabrication process. Trying to deal first with the deposition issues we hacked the milling machine (shopbot) to simulate in small scale the movement of an autonomous machine. We simulated the movement of a double nozzle machine with a processing definition, extracted the movement`s coordinates and sent it to the shopbot.