One embodiment is directed to a mobile pipeline extrusion system, comprising: a first mobile vehicle having a first electromechanical drive system and a first active suspension configured to stabilize the first mobile vehicle relative to terrain over which it may be navigated; a second mobile vehicle removably coupleable to the first mobile vehicle and having a second electromechanical drive system and a second active suspension configured to stabilize the second mobile vehicle relative to terrain over which it may be navigated; a computing system operably coupled to the first and second mobile vehicles and configured to operate the first and second electromechanical drive systems and first and second active suspensions such that the first and second mobile vehicles may move together in an end-to-end coupling configuration as a unified operational platform; and a polymeric pipeline extrusion system operatively coupled to the unified operational platform and configured to receive input materials, heat the input materials, process the input materials through an extrusion die, and produce an output pipeline.

One embodiment is directed to a mobile pipeline extrusion system, comprising: a first mobile vehicle having a first electromechanical drive system and a first active suspension configured to stabilize the first mobile vehicle relative to terrain over which it may be navigated; a second mobile vehicle removably coupleable to the first mobile vehicle and having a second electromechanical drive system and a second active suspension configured to stabilize the second mobile vehicle relative to terrain over which it may be navigated; a computing system operably coupled to the first and second mobile vehicles and configured to operate the first and second electromechanical drive systems and first and second active suspensions such that the first and second mobile vehicles may move together in an end-to-end coupling configuration as a unified operational platform; and a polymeric pipeline extrusion system operatively coupled to the unified operational platform and configured to receive input materials, heat the input materials, process the input materials through an extrusion die, and produce an output pipeline.

A system for optimizing the multi-extruder deposition process in a 3D printer including multiple extruders requires each extruder to have a body including an outer thermal insulation shell; the shell allowing the inlet/outlet of a fluid for the active and controlled refrigeration of the extruder. A method for optimizing the multi-extruder deposition process in a 3D printer with multiple extruders involves managing the temperature of each extruder using active refrigeration sized so as to have a sudden control of the cooling ramp and to manage the viscosity of the material in the event of extruder change. For the entire duration of the printing with another extruder, the unused extruder nozzle remains in a limited range around the extrusion temperature, thus eliminating downtime, while the solidified filament from the sudden forced cooling is pulled back into a low temperature nozzle area where it does not degrade during non-use.

A system for optimizing the multi-extruder deposition process in a 3D printer including multiple extruders requires each extruder to have a body including an outer thermal insulation shell; the shell allowing the inlet/outlet of a fluid for the active and controlled refrigeration of the extruder. A method for optimizing the multi-extruder deposition process in a 3D printer with multiple extruders involves managing the temperature of each extruder using active refrigeration sized so as to have a sudden control of the cooling ramp and to manage the viscosity of the material in the event of extruder change. For the entire duration of the printing with another extruder, the unused extruder nozzle remains in a limited range around the extrusion temperature, thus eliminating downtime, while the solidified filament from the sudden forced cooling is pulled back into a low temperature nozzle area where it does not degrade during non-use.