Abstract: A sintering furnace can include an outer shell defining an internal volume a reactive agent inlet configured to introduce a reactive agent into the internal volume; an insulation chamber within the outer shell; and a retort configured to retain an object. A method of operating a sintering furnace can include sintering a part precursor within a retort arranged within a chamber, wherein the chamber defines an intermediate volume between the retort and the chamber, wherein a sintering byproduct is oxidized within the intermediate volume.

Abstract: A method for facilitating part fabrication, such as by automated toolpath generation, can include one or more of: receiving a virtual part; modifying the virtual part; and/or determining toolpaths to fabricate the target part. The toolpaths preferably define an ordered series of additive and subtractive toolpaths, more preferably wherein the additive and subtractive toolpaths are interleaved, which can function to achieve high manufacturing efficiency and/or performance. The method can additionally or alternatively include: generating machine instructions based on the toolpaths; fabricating the target part based on the machine instructions; calibrating the fabrication system; and/or any other suitable elements.

Abstract: A system for, and method of, printing a three-dimensional (3D) object are presented. The techniques can include obtaining a three-dimensional virtual representation of the object; obtaining first and second 3D printing strategies; obtaining first and second virtual extrusion renderings, wherein the virtual extrusion renderings corresponds to first and second toolpaths for a deposition layer of the object according to the first and second 3D printing strategies; performing first and second comparisons of, respectively, the first and second virtual extrusion renderings to a corresponding portion of the three-dimensional virtual representation of the object; determining, based on the first and second comparisons, respectively, first and second regions of the object that do not intersect the virtual extrusion rendering; providing an output 3D printing strategy for the deposition layer of the object selected from among the first and second 3D printing strategies based on the first and second regions of the object.

Abstract: A method for facilitating part fabrication, such as by automated toolpath generation, can include one or more of: receiving a virtual part; modifying the virtual part; and/or determining toolpaths to fabricate the target part. The toolpaths preferably define an ordered series of additive and subtractive toolpaths, more preferably wherein the additive and subtractive toolpaths are interleaved, which can function to achieve high manufacturing efficiency and/or performance. The method can additionally or alternatively include: generating machine instructions based on the toolpaths; fabricating the target part based on the machine instructions; calibrating the fabrication system; and/or any other suitable elements.

Abstract: An anti-warping layer and systems and methods for employing such. The anti-warping layer having a mobile and/or lubricious characteristics configured to reduce warpage of a fabricated physical object when the fabricated physical object is subjected to volumetric change inducing treatments.

Abstract: An assembly for controlling waste material during a hybrid subtractive and additive manufacturing process is disclosed, including a machining tool held in a holder, a shroud disposed around the machining tool, and one or more ports configured to create a negative pressure within the shroud. A method of constraining waste material during a hybrid subtractive and additive manufacturing process of a part includes adding an amount of material to a part being additively manufactured, transforming the amount of material that was added, manipulating a tool to machine a portion of the part being additively manufactured and generating a waste material, sealing a portion of the tool and covering a portion of the part with a shroud, and applying a negative pressure to create an airflow to prevent the waste material from exiting the shroud.

Abstract: A material and method are disclosed such that the material can be used to form functional metal pieces by producing an easily sintered layered body of dried metal paste. On a microstructural level, when dried, the metal paste creates a matrix of porous metal scaffold particles with infiltrant metal particles, which are positioned interstitially in the porous scaffold's interstitial voids. For this material to realize mechanical and processing benefits, the infiltrant particles are chosen such that they pack in the porous scaffold piece in a manner which does not significantly degrade the packing of the scaffold particles and so that they can also infiltrate the porous scaffold on heating. The method of using this paste provides a technique with high rate and resolution of metal part production due to a hybrid deposition/removal process.

Abstract: A material and method are disclosed such that the material can be used to form functional metal pieces by producing an easily sintered layered body of dried metal paste. On a microstructural level, when dried, the metal paste creates a matrix of porous metal scaffold particles with infiltrant metal particles, which are positioned interstitially in the porous scaffold's interstitial voids. For this material to realize mechanical and processing benefits, the infiltrant particles are chosen such that they pack in the porous scaffold piece in a manner which does not significantly degrade the packing of the scaffold particles and so that they can also infiltrate the porous scaffold on heating. The method of using this paste provides a technique with high rate and resolution of metal part production due to a hybrid deposition/removal process.

Abstract: A method for facilitating part fabrication, such as by automated toolpath generation, can include one or more of: receiving a virtual part; modifying the virtual part; and/or determining toolpaths to fabricate the target part. The toolpaths preferably define an ordered series of additive and subtractive toolpaths, more preferably wherein the additive and subtractive toolpaths are interleaved, which can function to achieve high manufacturing efficiency and/or performance. The method can additionally or alternatively include: generating machine instructions based on the toolpaths; fabricating the target part based on the machine instructions; calibrating the fabrication system; and/or any other suitable elements.

Abstract: A method for facilitating part fabrication, such as by automated toolpath generation, can include one or more of: receiving a virtual part; modifying the virtual part; and/or determining toolpaths to fabricate the target part. The toolpaths preferably define an ordered series of additive and subtractive toolpaths, more preferably wherein the additive and subtractive toolpaths are interleaved, which can function to achieve high manufacturing efficiency and/or performance. The method can additionally or alternatively include: generating machine instructions based on the toolpaths; fabricating the target part based on the machine instructions; calibrating the fabrication system; and/or any other suitable elements.

Abstract: A system for additive metal manufacturing, including a deposition mechanism, a translation mechanism mounting the deposition mechanism to the working volume, and a stage. A method for additive metal manufacturing including: selectively depositing a material carrier within the working volume; removing an additive from the material carrier; and treating the resultant material.

Abstract: A system for, and method of, printing a three-dimensional (3D) object are presented. The techniques can include obtaining a three-dimensional virtual representation of the object; obtaining first and second 3D printing strategies; obtaining first and second virtual extrusion renderings, wherein the virtual extrusion renderings corresponds to first and second toolpaths for a deposition layer of the object according to the first and second 3D printing strategies; performing first and second comparisons of, respectively, the first and second virtual extrusion renderings to a corresponding portion of the three-dimensional virtual representation of the object; determining, based on the first and second comparisons, respectively, first and second regions of the object that do not intersect the virtual extrusion rendering; providing an output 3D printing strategy for the deposition layer of the object selected from among the first and second 3D printing strategies based on the first and second regions of the object.

Abstract: A system for additive metal manufacturing, including a deposition mechanism, a translation mechanism mounting the deposition mechanism to the working volume, and a stage. A method for additive metal manufacturing including: selectively depositing a material carrier within the working volume; removing an additive from the material carrier; and treating the resultant material.

Abstract: A sintering furnace can include an outer shell defining an internal volume a reactive agent inlet configured to introduce a reactive agent into the internal volume; an insulation chamber within the outer shell; and a retort configured to retain an object. A method of operating a sintering furnace can include sintering a part precursor within a retort arranged within a chamber, wherein the chamber defines an intermediate volume between the retort and the chamber, wherein a sintering byproduct is oxidized within the intermediate volume.

Abstract: A method for facilitating part fabrication, such as by automated toolpath generation, can include one or more of: receiving a virtual part; modifying the virtual part; and/or determining toolpaths to fabricate the target part. The toolpaths preferably define an ordered series of additive and subtractive toolpaths, more preferably wherein the additive and subtractive toolpaths are interleaved, which can function to achieve high manufacturing efficiency and/or performance. The method can additionally or alternatively include: generating machine instructions based on the toolpaths; fabricating the target part based on the machine instructions; calibrating the fabrication system; and/or any other suitable elements.

Abstract: Paste compositions for additive manufacturing and methods for the same are provided. The paste composition may include an organic vehicle, and one or more powders dispersed in the organic vehicle. The organic vehicle may include a solvent, a polymeric binder, a thixotropic additive, and a dispersant. The organic vehicle may be configured to provide the paste composition with a suitable viscosity. The organic vehicle may also be configured to provide a stable paste composition for a predetermined period of time.

Abstract: A method for facilitating part fabrication, such as by automated toolpath generation, can include one or more of: receiving a virtual part; modifying the virtual part; and/or determining toolpaths to fabricate the target part. The toolpaths preferably define an ordered series of additive and subtractive toolpaths, more preferably wherein the additive and subtractive toolpaths are interleaved, which can function to achieve high manufacturing efficiency and/or performance. The method can additionally or alternatively include: generating machine instructions based on the toolpaths; fabricating the target part based on the machine instructions; calibrating the fabrication system; and/or any other suitable elements.

Abstract: A sintering furnace can include an outer shell defining an internal volume a reactive agent inlet configured to introduce a reactive agent into the internal volume; an insulation chamber within the outer shell; and a retort configured to retain an object. A method of operating a sintering furnace can include sintering a part precursor within a retort arranged within a chamber, wherein the chamber defines an intermediate volume between the retort and the chamber, wherein a sintering byproduct is oxidized within the intermediate volume.

Abstract: A system for additive metal manufacturing, including a deposition mechanism, a translation mechanism mounting the deposition mechanism to the working volume, and a stage. A method for additive metal manufacturing including: selectively depositing a material carrier within the working volume; removing an additive from the material carrier; and treating the resultant material.

Abstract: A method for facilitating part fabrication, such as by automated toolpath generation, can include one or more of: receiving a virtual part; modifying the virtual part; and/or determining toolpaths to fabricate the target part. The toolpaths preferably define an ordered series of additive and subtractive toolpaths, more preferably wherein the additive and subtractive toolpaths are interleaved, which can function to achieve high manufacturing efficiency and/or performance. The method can additionally or alternatively include: generating machine instructions based on the toolpaths; fabricating the target part based on the machine instructions; calibrating the fabrication system; and/or any other suitable elements.