{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/113920"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/113920","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Height error mapping and compensation for a fused filament fabrication machine","abstract":"An artifact-based height error mapping and compensation method for fused lament fabrication machines (\"3D printers\") is developed. In the proposed method, an error mapping artifact is produced and inspected using a coordinate measuring machine to determine height errors at 81 discrete points in the machine's work envelope. A polynomial regression model is fitted to this measured data and used to generate height error predictions at each point in the volume of novel parts. Finally, height error compensation based on the aforementioned model is applied by modifying G-code sequences used to drive the machine. Preliminary experimental validation of the proposed method's efficacy was carried out on NVPro fused lament fabrication machines manufactured by New Valence Robotics Corporation. Results suggest the proposed method is capable of reducing systematic height errors and spatial dependence of height errors over the work volume studied. However, these improvements are attenuated by an accompanying increase in random height variation resulting from the intervention. Recommendations for further testing, refinement, and application of the proposed error mapping and compensation method are presented.","abstract_html":"An artifact-based height error mapping and compensation method for fused lament fabrication machines ("3D printers") is developed. In the proposed method, an error mapping artifact is produced and inspected using a coordinate measuring machine to determine height errors at 81 discrete points in the machine's work envelope. A polynomial regression model is fitted to this measured data and used to generate height error predictions at each point in the volume of novel parts. Finally, height error compensation based on the aforementioned model is applied by modifying G-code sequences used to drive the machine. Preliminary experimental validation of the proposed method's efficacy was carried out on NVPro fused lament fabrication machines manufactured by New Valence Robotics Corporation. Results suggest the proposed method is capable of reducing systematic height errors and spatial dependence of height errors over the work volume studied. However, these improvements are attenuated by an accompanying increase in random height variation resulting from the intervention. Recommendations for further testing, refinement, and application of the proposed error mapping and compensation method are presented.","abstract_has_math":false,"creators":["Lee, Shien Yang"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Mechanical Engineering.","school":null,"contributors":[],"advisors":["David E. Hardt."],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017","date_published":"2017","updated_at":"2026-07-22T22:21:40Z","subjects":["Mechanical Engineering."],"languages":["eng"],"rights":["MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission."],"rights_urls":["http://dspace.mit.edu/handle/1721.1/7582"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/1721.1/113920","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["David E. Hardt."]},{"key":"dc:contributor.department","label":"Department","values":["Massachusetts Institute of Technology. Department of Mechanical Engineering."]},{"key":"dc:contributor.other","label":"Dc Contributor Other","values":["Massachusetts Institute of Technology. Department of Mechanical Engineering."]},{"key":"dc:creator","label":"Author","values":["Lee, Shien Yang"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-03-02T21:39:15Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2018-03-02T21:39:15Z"]},{"key":"dc:date.issued","label":"Date","values":["2017"]},{"key":"dc:publisher","label":"Institution","values":["Massachusetts Institute of Technology"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Mechanical Engineering."]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1721.1/113920"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis: M. Eng. in Advanced Manufacturing and Design, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.","This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.","Cataloged from student-submitted PDF version of thesis.","Includes bibliographical references (pages 95-98)."]},{"key":"dc:description.abstract","label":"Abstract","values":["An artifact-based height error mapping and compensation method for fused lament fabrication machines (\"3D printers\") is developed. In the proposed method, an error mapping artifact is produced and inspected using a coordinate measuring machine to determine height errors at 81 discrete points in the machine's work envelope. A polynomial regression model is fitted to this measured data and used to generate height error predictions at each point in the volume of novel parts. Finally, height error compensation based on the aforementioned model is applied by modifying G-code sequences used to drive the machine. Preliminary experimental validation of the proposed method's efficacy was carried out on NVPro fused lament fabrication machines manufactured by New Valence Robotics Corporation. Results suggest the proposed method is capable of reducing systematic height errors and spatial dependence of height errors over the work volume studied. However, these improvements are attenuated by an accompanying increase in random height variation resulting from the intervention. Recommendations for further testing, refinement, and application of the proposed error mapping and compensation method are presented."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["M. Eng. in Advanced Manufacturing and Design"]},{"key":"dc:title","label":"Title","values":["Height error mapping and compensation for a fused filament fabrication machine"]}]}],"canonical_facts":{"dc:contributor.advisor":["David E. Hardt."],"dc:contributor.department":["Massachusetts Institute of Technology. Department of Mechanical Engineering."],"dc:contributor.other":["Massachusetts Institute of Technology. Department of Mechanical Engineering."],"dc:creator":["Lee, Shien Yang"],"dc:date.accessioned":["2018-03-02T21:39:15Z"],"dc:date.available":["2018-03-02T21:39:15Z"],"dc:date.issued":["2017"],"dc:description":["Thesis: M. Eng. in Advanced Manufacturing and Design, Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.","This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.","Cataloged from student-submitted PDF version of thesis.","Includes bibliographical references (pages 95-98)."],"dc:description.abstract":["An artifact-based height error mapping and compensation method for fused lament fabrication machines (\"3D printers\") is developed. In the proposed method, an error mapping artifact is produced and inspected using a coordinate measuring machine to determine height errors at 81 discrete points in the machine's work envelope. A polynomial regression model is fitted to this measured data and used to generate height error predictions at each point in the volume of novel parts. Finally, height error compensation based on the aforementioned model is applied by modifying G-code sequences used to drive the machine. Preliminary experimental validation of the proposed method's efficacy was carried out on NVPro fused lament fabrication machines manufactured by New Valence Robotics Corporation. Results suggest the proposed method is capable of reducing systematic height errors and spatial dependence of height errors over the work volume studied. However, these improvements are attenuated by an accompanying increase in random height variation resulting from the intervention. Recommendations for further testing, refinement, and application of the proposed error mapping and compensation method are presented."],"dc:description.degree":["M. Eng. in Advanced Manufacturing and Design"],"dc:identifier.uri":["http://hdl.handle.net/1721.1/113920"],"dc:language.iso":["eng"],"dc:publisher":["Massachusetts Institute of Technology"],"dc:rights":["MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission."],"dc:rights.uri":["http://dspace.mit.edu/handle/1721.1/7582"],"dc:subject":["Mechanical Engineering."],"dc:title":["Height error mapping and compensation for a fused filament fabrication machine"],"dc:type":["Thesis"]},"updated_at":"2026-07-22T22:21:40Z"}