Kinematic error modeling and error compensation of desktop 3D printer

Shane Keaveney; Pat Connolly; Eoin D. OCearbhaill

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Kinematic error modeling and error compensation of desktop 3D printer

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Desktop3D printers have revolutionized how designers and makers prototype and manufacture certain products.Highly popular fuse deposition modeling(FDM)desktop printers have enabled a shift to low-cost consumer goods markets,through reduced capital equipment investment and consumable material costs.However,with this drive to reduce costs,the computer numerical control(CNC)systems implemented in FDM printers are often compromised by poor accuracy and contouring errors.This condition is most critical as users begin to use3D-printed components in load-bearing applications or to perform mechanical functions.Improved methods of low-cost3D printer calibration are needed before their open-design potential can be realized in applications,including3D-printed orthotics and prosthetics.This paper appliesmethodologies associated with high-precision CNC machining systems,namely,kinematic error modeling and compensation coupled with standardized test methods fromISO230-4,such as the ballbar for kinematic and dynamic error measurements,to examine the influence and feasibility for use on low-cost CNC/3D printing platforms.Recently,the U.S.Food and Drug Administration''''s"Technical considerations for additive manufactured medical devices"highlighted the need to develop standards specific to additive manufacturing in regulated manufacturing environments.This paper shows the benefits of themethods describedwithin ISO230-4for error assessment,alongside applying kinematic errormodeling and compensation to the popular kinematic configuration of an Ultimaker3Dprinter.A Renishaw ballbar QC10is used to quantify the Ultimaker''''s errors and thereby populate the errormodel.Thismethod quantifies machine errors and populates these in amathematicalmodel of the CNC system.Then,a post-processor can be used to compensate the printing code.Subsequently,the ballbar is used to demonstrate the dramatic impact of the error compensation model on the accuracy and contouring of the Ultimaker printer with58%reduction in overall circularity error and90%reduction in squareness error.

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《纳米技术与精密工程（英文）》 |2018年第003期|P.180-186|共7页
作者
Shane Keaveney; Pat Connolly; Eoin D. OCearbhaill;
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作者单位

[1]School of Mechanical and Materials Engineering, UCD Engineering and Materials Science Centre, Dublin 4, Ireland;

[1]School of Mechanical and Materials Engineering, UCD Engineering and Materials Science Centre, Dublin 4, Ireland;

[1]School of Mechanical and Materials Engineering, UCD Engineering and Materials Science Centre, Dublin 4, Ireland;

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原文格式 PDF
正文语种 CHI
中图分类力学;
关键词
3D printing accuracy; Kinematic error modeling; Kinematic error compensation; Ballbar; FDM3D printing; ISO230-4;

机译：3D打印精度;运动误差建模;运动误差补偿;球杆;FDM3D打印;ISO230-4;

Kinematic error modeling and error compensation of desktop 3D printer

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