US 12,649,283 B2Granted

Method for regenerating tool path on basis of output data feedback in order to improve 3D printing output reliability

AssigneeKorea Electronics Technology Institute

InventorsHwa Seon Shin, Sung Hun Park, Hye In Lee, Sung Hwan Chun

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Abstract

Provided is a method for regenerating a tool path on the basis of output data feedback in order to improve 3D printing output reliability. A tool path regeneration system according to an embodiment of the present invention comprises: a slicing unit for configuring a process parameter for 3D printing and performing slicing for 3D model data on the basis of the configured process parameter to generate a job file; and an output unit for performing 3D printing on the basis of the generated job file and collecting output data that is output while the 3D printing is performed, wherein the slicing unit comprises an output data analysis module for performing monitoring on the basis of the output data received from the output unit and determining whether to correct the process parameter on the basis of the result of the monitoring. Thus, when a user recognizes or predicts an output error and output failure in an output step, the user can regenerate an output error alarm or a tool path on the basis of output data feedback generated in the output step without returning to a slicing step to regenerate a job file, whereby output reliability can be improved and a production time and a production cost can be reduced.

Claims18

Dependent claims

A system for regenerating a tool path, the system comprising:

one or more processors comprising:
a slicing unit configured to configure a process parameter for 3D printing and to perform slicing for 3D model data according to the configured process parameter to generate a job file;
and
an output unit configured to perform 3D printing according to the generated job file and to collect output data which is outputted while the 3D printing is performed,
wherein the slicing unit comprises an output data analysis module configured to perform monitoring based on the output data received from the output unit, and to determine whether to modify the process parameter according to a result of the monitoring,
wherein the output data analysis module is further configured to, when an output error condition or printing abnormality is detected or predicted based on the monitored output data, regenerate a layer-specific tool path corresponding to one or more specific layers in which the output error condition or the printing abnormality occurs, and to transmit the regenerated layer-specific tool path, corresponding to the one or more specific layers in which the output error condition or the printing abnormality occurs, to the output unit through a dedicated layer-specific tool path without regenerating the entire tool path generation file, and
wherein the regenerated layer-specific tool path is generated based on one or more printing parameters derived from the monitored output data, and
wherein the output data analysis module is configured to determine whether to modify a tool path for each layer when performing a tool path modification operation, to regenerate only tool paths of layers which are determined to be modified, rather than tool paths of all layers, and to deliver the regenerated layer-specific tool path to the output unit through a layer-specific tool path channel which is separately provided to deliver information in the unit of layer.

5 more elements

A method for regenerating a tool path, the method comprising:

performing slicing for 3D model data according to a process parameter which is configured for 3D printing to generate a job file;
performing 3D printing according to the generated job file;
monitoring output data which is outputted while the 3D printing is performed;
determining whether to modify the process parameter according to a result of the monitoring;
when an output error condition or printing abnormality is detected or predicted based on the monitored output data, regenerating a layer-specific tool path corresponding to one or more specific layers in which the condition occurs;
transmitting the regenerated layer-specific tool path to a 3D printing apparatus through a dedicated layer-specific transmission channel without regenerating the entire tool path generation file, including determining whether to modify a tool path for each layer when performing a tool path modification operation, regenerating only tool paths of layers which are determined to be modified, rather than tool paths of all layers, and delivering the regenerated layer-specific tool path to a 3D printing apparatus through a layer-specific tool path channel which is separately provided to deliver information in the unit of layer;
and
generating the regenerated tool path based on one or more printing parameters derived from the monitored output data.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/038,767Filed 3 Nov 2021
Priority: KR 10-2020-015949125 Nov 2020
Published: US 2024/0100779 A128 Mar 2024
Granted: 9 Jun 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

B29C 64/393
Data acquisition or data processing for additive manufacturing: for controlling or regulating additive manufacturing processes
B22F 10/28
Direct sintering or melting: powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/366
Of energy beam parameters: scanning parameters, e.g. hatch distance or scanning strategy
B22F 10/85
Data acquisition or data processing: for controlling or regulating additive manufacturing processes