Thermographic diagnostics serve as an important tool for monitoring thermal processes and identifying potential operational deficiencies in industrial equipment. This method enables non-contact measurement of temperature distribution on object surfaces, analysis of heat transfer, and the detection of thermal anomalies that may indicate functional malfunctions or excessive thermal stress on individual components. This article explores the experimental application of thermographic measurement for investigating thermal processes at specific locations within technical equipment. The measurements were conducted in a laboratory setting using a thermographic system comprising a Micro-Epsilon Thermo IMAGER TIM QVGA-HD infrared camera, TIM software for data processing and evaluation, and the necessary experimental accessories. The experimental investigation focused on evaluating the heating uniformity of the print bed on a Creality CR-X Pro 3D printer, as well as analyzing temperature profiles and distribution at selected points on a test rig designed for evaluating belt drives. The acquired thermographic data were processed and evaluated through graphical outputs, allowing for a detailed assessment of the observed thermal phenomena. Based on the results, a technical analysis of the thermal processes was performed, and the potential for using thermographic monitoring to assess the functionality and operational status of the equipment under study was evaluated.