169502 20260302165029.0 doi 10.1016/j.rineng.2026.109762 sideral 148396 ART-2026-148396 eng Aguado, Sergio Universidad de Zaragoza (orcid)0000-0001-8689-6482 Kinematic modelling and volumetric error compensation of a 3-axis machine tool using a telescopic simultaneous ballbar 2026 Volumetric verification (VV) is an effective method for improving the machining accuracy of three and five-axis machine tools (MTs). This paper presents the volumetric verification and error compensation procedure of a medium-sized 3-axis machine tool using a telescopic simultaneous ballbar (TSB). The paper presents the MT kinematic model, the error compensation process with the TSB and the validation in the MT selected. A two-phase optimisation was chosen, in which the squareness and linear errors were calculated together, while in a second phase the rotational errors were identified. A relevant aspect of the work is to evaluate the impact of influencing factors on the verification, such as the location and measurement uncertainty of the measuring system (TSB), the distribution of the points to be verified and the data filtering process. The average volumetric error is reduced by 79.8% in the line verification for a given work area and by 41.7% in a grid considering a global distribution of the MT working volume. The results obtained by the laser interferometer after compensation of the x-axis position error confirm that this technique effectively improves the MT accuracy, with maximum errors of 5 μm and 7 μm for the verification line and grid, respectively. The implemented algorithms are efficient and robust, and the results obtained using the TSB show a global correction of the MT over the entire working area. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/AEI/PID2022-139280OB-I00 info:eu-repo/grantAgreement/ES/DGA/T56-23R info:eu-repo/grantAgreement/ES/MINECO/DPI2017-90106-R info:eu-repo/semantics/openAccess by-nc https://creativecommons.org/licenses/by-nc/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pueo, Marcos Universidad de Zaragoza (orcid)0000-0002-4931-8752 Acero, Raquel Universidad de Zaragoza (orcid)0000-0002-4917-8550 Brosed, Francisco Javier Universidad de Zaragoza (orcid)0000-0003-3080-9217 Santolaria, Jorge Universidad de Zaragoza (orcid)0000-0001-7316-0003 Aguilar, Juan José Universidad de Zaragoza (orcid)0000-0002-8609-1358 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 5002 515 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Ing. Procesos Fabricación 29 (2026), 109762 [13 pp.] Results in Engineering 2590-1230 10980968 http://zaguan.unizar.es/record/169502/files/texto_completo.pdf Versión publicada 2507014 http://zaguan.unizar.es/record/169502/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:169502 articulos driver 2026-03-02-14:47:58 ARTICLE