Abstract: A three-dimensional printer for the additive manufacturing of a part is provided. The printer includes a build platen, a pre-extrusion system, and a print head located downstream of the pre-extrusion system and configured to receive and deposit a filament. The print head includes a receiving section configured to receive the filament, an outlet through which the filament is deposited onto the build platen or a previously added layer of a part, a feeding mechanism constructed and arranged to feed the filament into the outlet, and a path length adjustment system positioned on the print head disposed between the pre-extrusion system and the feeding mechanism. The path length adjustment system constructed and arranged to create slack in the filament being delivered from the pre-extrusion system. Path length adjustment devices incorporating sliding components and flexure components are also disclosed.

Abstract: In one aspect, a method includes loading, at a local computing device and at a remote computing device, a machine learning model comprising layers; measuring, at the local computing device, parameters for each of the; determining, based on the parameters, a first set of the one or more layers of the machine learning model to execute by the local computing device and a second set of the layers of the machine learning model to execute at the remote computing device; receiving, from a sensor, a first output, and subsequently inputting the first output into the first set of the layers of the machine learning model executed by the local computing device; and receiving, from the first set of the layers of the machine learning model, a second output, and subsequently transmitting the second output to the remote computing device.