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US 11,597,011 B2Granted
Printer for the three-dimensional fabrication
AssigneeDesktop Metal, Inc.
InventorsPeter Alfons Schmitt, Jonah Samuel Myerberg, Ricardo Fulop, Michael Andrew Gibson, Matthew David Verminski, Richard Remo Fontana, Christopher Allan Schuh, Yet-Ming Chiang, Anastasios John Hart
Life of this patent
Estimating the term…
Abstract
Techniques are disclosed for fabricating multi-part assemblies. In particular, by forming release layers between features such as bearings or gear teeth, complex mechanical assemblies can be fabricated in a single additive manufacturing process.
Claims24
A printer for three-dimensional fabrication, the printer comprising:
- a build plate;
- a print head;
- a robotic system operable to move the print head relative to the build plate;
- and
- a processor configured by computer executable code to move the robotic system along a build path relative to the build plate to:
- fabricate a first object from a first material, wherein the first material includes a powdered material and a binder system, the binder system including one or more binders that resist deformation of a net shape of the first object during processing of the first object into a final part;
- apply an interface layer adjacent to a first surface of the first object, the interface layer reducing to a powder during sintering of the first material;
- and
- fabricate a second surface of a second object from a second material at a location adjacent to the interface layer and opposing the first surface of the first object, wherein the second object is structurally independent from and mechanically related to the first object, and wherein the interface layer resists bonding of the first surface to the second surface during sintering.
6 more elements
A printer for three-dimensional fabrication, the printer comprising:
- a build plate;
- a print head;
- a robotic system operable to move the print head relative to the build plate;
- and
- a processor configured by computer executable code to move the robotic system along a build path relative to the build plate to:
- fabricate a first object from a first material, wherein the first material includes a powdered material and a binder system, the binder system including one or more binders that resist deformation of a net shape of the first object during processing of the first object into a final part;
- apply an interface layer adjacent to a first surface of the first object;
- fabricate a second surface of a second object from a second material at a location adjacent to the interface layer and opposing the first surface of the first object, wherein the second object is structurally independent from and mechanically related to the first object, wherein the first object and the second object form a multi-part mechanical assembly, and wherein the interface layer resists bonding of the first surface to the second surface during sintering;
- and
- provide a physical exit path within the multi-part mechanical assembly for extraction of a support material, wherein the support material reduces to a powder during sintering of the first material.
7 more elements
Dependencies are inferred from the claim text.