Platen Planarizing Process for Additive Manufacturing System
First Claim
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1. A method for printing a three-dimensional part with an additive manufacturing system having a platen with a platen surface, the method comprising:
- measuring heights of multiple points of the platen surface, wherein the measured heights provide a mapped topography of the platen surface;
calculating a height of a planarizing part as a function of the measured heights;
generating a digital model of the planarizing part based on the calculated height and the mapped topography of the platen surface;
printing the planarizing part with the additive manufacturing system based on the generated digital model of the planarizing part, wherein the printed planarizing part has a substantially-planar top surface in a build plane, and a bottom surface that substantially mirrors the mapped topography of the platen surface; and
printing the three-dimensional part over the substantially-planar top surface of the printed planarizing part.
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Abstract
A method for printing a three-dimensional part with an additive manufacturing system, the method comprising generating and printing a planarizing part having a substantially-planar top surface relative to a build plane, and a bottom surface that substantially mirrors a topography of a platen surface, and printing the three-dimensional part over the substantially-planar top surface of the printed planarizing part.
64 Citations
20 Claims
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1. A method for printing a three-dimensional part with an additive manufacturing system having a platen with a platen surface, the method comprising:
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measuring heights of multiple points of the platen surface, wherein the measured heights provide a mapped topography of the platen surface; calculating a height of a planarizing part as a function of the measured heights; generating a digital model of the planarizing part based on the calculated height and the mapped topography of the platen surface; printing the planarizing part with the additive manufacturing system based on the generated digital model of the planarizing part, wherein the printed planarizing part has a substantially-planar top surface in a build plane, and a bottom surface that substantially mirrors the mapped topography of the platen surface; and printing the three-dimensional part over the substantially-planar top surface of the printed planarizing part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for printing a three-dimensional part with an additive manufacturing system having a platen with a platen surface, the method comprising:
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measuring heights of multiple points of the platen surface, wherein the measured heights provide a mapped topography of the platen surface; determining a peak height based on the measured heights; calculating a height for a planarizing part as a function of the determined peak height and at least one slice thickness for the planarizing part; generating a digital model of the planarizing part having a substantially-planar top surface at the calculated height, and a bottom surface that mirrors the mapped topography of the platen surface; and printing the planarizing part with the additive manufacturing system based on the generated digital model of the planarizing part. - View Dependent Claims (11, 12, 13, 14)
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15. An object printed with an additive manufacturing system having a platen with a platen surface, the object comprising:
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a three-dimensional part; optionally, a support structure for the three-dimensional part, wherein the three-dimensional part and the optional support structure have a bounding box in a build plane; and a planarizing part comprising; a top surface on which one or both of the three-dimensional part and the optional support structure are printed, wherein the top surface is substantially planar in the build plane; a bottom surface that substantially mirrors a topography of the platen surface on which the planarizing part is printed; and a cross-section in the build plane defined at least in part by the bounding box. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification