Abstract:
In an aspect of the disclosure, a three dimensional (3D) printing system includes a printhead and an ink supply subsystem. The printhead is for ejecting drops of phase change ink to define a three dimensional article of manufacture. The ink supply subsystem includes an ink tube, a helical resistor, a return conductor, and an outer tube. The ink tube has an inside surface for contacting and transporting the phase change ink and an outer tubular surface. The resistor is helically wound around the outer tubular surface of the ink tube. The return conductor is helically wound around the resistor and has a resistance that is lower than that of the resistor. The outer tube surrounds and protects the resistor and the return conductor and provides insulation to the heated ink transport component.
Abstract:
A 3D printing system comprises an X-axis base for positioning stationarily relative to movable Y-axis and Z-axis components. The X-axis base has first and second sides and a workpiece opening. A Z-axis base is secured to the X-axis base's second side adjacent the opening. The Z-axis base is configured to support a model being printed and to controllably move the model in a Z direction through the opening. There is a movable arm member slidingly coupled to the second side of the X-axis base and extending over the first side of the X-axis base. The movable arm is movable in an X direction. A Y-axis carriage is slidingly coupled to the movable arm member and is movable in a Y direction. A printhead coupled to the Y-axis carriage is controllably movable in the X and Y directions to print successive layers of the model supported by the Z-axis base.
Abstract:
In an aspect of the disclosure, a three dimensional (3D) printing system includes a printhead and an ink supply subsystem. The printhead is for ejecting drops of phase change ink to define a three dimensional article of manufacture. The ink supply subsystem includes an ink tube, a helical resistor, a return conductor, and an outer tube. The ink tube has an inside surface for contacting and transporting the phase change ink and an outer tubular surface. The resistor is helically wound around the outer tubular surface of the ink tube. The return conductor is helically wound around the resistor and has a resistance that is lower than that of the resistor. The outer tube surrounds and protects the resistor and the return conductor and provides insulation to the heated ink transport component.