Dataset for thermal error compensation in a 3-axis CNC machine

Published: 9 July 2024| Version 1 | DOI: 10.17632/cf83psmrv4.1


This dataset provides comprehensive measurements of positioning errors in 3-axis CNC machines under varying thermal conditions, allowing the identification of accuracy and behavior in CNC machining environments, enabling the understanding of the impact of thermal fluctuations on the machine structure and components with respect to machining precision. Obtaining accurate positioning error measurements in 3-axis CNC machines is time-intensive process. The use of interferometric laser systems requires setup and calibration to ensure precise data acquisition. The replication in several temperature conditions also extend the setup time. This prolonged measurement time is necessary to capture the dynamic variations influenced by thermal fluctuations across X, Y, and Z axes.


Steps to reproduce

Data collections were performed on a ROMI Discovery 560 three-axis MCM with a Siemens 810D CNC. For bearing temperature measurement, six thin-film PT100 RTDs were used. The temperature acquisition hardware included a Siemens SIMATIC S7-300 PLC, an IM 361 connection, a PLC expansion module, and a SIPLUS S7-300 input card with eight inputs. Positioning error measurements were made using an IL model RENISHAW XL-80 with a RENISHAW XC-80 compensator. Measurements were taken under various temperature conditions, including room temperature. Axis scan measurements were taken every 25 mm along the total stroke of each axis


Instituto Maua de Tecnologia Centro Universitario, Instituto Maua de Tecnologia


Mechanical Engineering, Machine, Precision Engineering, Precision Machine, Machine Calibration