The article describes the measurement of unidirectional pose accuracy and repeatability of a collaborative robot. The objective of the measurements is to investigate and evaluate unidirectional accuracy of the six-axis collaborative robot UR5 of the company Universal Robots. The measurement methodology was based on outlining an imaginary ISO cube placed in the robot’s workspace, in which the robot’s tool centre point (TCP) attained five measurement points in thirty measurement cycles. A video camera and six linear incremental sensors with six evaluation units were used for the measurement. The measured values are presented and applied according to the ISO 9283 standard. On the basis of the measurement, we verified technical specifications of unidirectional pose accuracy and repeatability of the robotic arm UR5 specified by its producer.

This article presents the variability of Fused deposition modelling (FDM) technology and the possibilities of its use in the design and implementation of a prototype atypical device. The assumptions of the behaviour of individual components and subsystems of the design result from an extensive application of the finite element method and motion analysis of subsystems and various parts of the structure. The use of this method to such an extent accelerated the design process and its implementation. The proposal itself reflects the current state of this technology and its focus is on improving sustainable development. As is generally known, great efforts are currently being made to reduce plastic waste volume and its environmental burden. The proposed concept is modified to replace the final treatment of the top layers of the models, called “ironing” by non-planar layering of material. At the same time, it points out the advantages of this method in reducing energy requirements and the time required to produce models. The conclusion is a conceptual design of a printhead for a proposed prototype, designed to use recycled FDM, intending to streamline the possibility of recycling with little serial and piece production. This process thus closes the circle of opportunities published by us, which in the future can contribute to the optimisation of this technology towards increasing the efficiency of resource use, reduction of energy demands and environmental burden.

At present, while the development of technology used to display, create, and manipulate 3D models is already very advanced, we are still confronted with situations where it is necessary to use technical documentation. Whatever the production or educational process, this part of the documentation will still be necessary. With this fact, we are increasingly forced to think about how it would facilitate the process of reading and learning with this kind of media. Due to the often inadequate technical level of the interested persons, we come in this article with a way of possible implementation of the augmented reality into the technical documentation, to facilitate its reading and to improve the spatial perception of the included objects.

The article describes application of selected methods of technical diagnostics for assessing the operating status of precision gearboxes. Within the confines of experimental measurements in the field of physical metallurgy materials of diagnosed system were being examined while taking into account the process of degradation of material properties during operation of monitored gearboxes. Measurements and collecting of dynamic data were realized on 4 selected gearboxes where a high-frequency vibrations and acoustic emission (noise) measurements were carried out. Retrieved values were subsequently used for mutual correlation and verification of applied methods. Results of both selected methods underlined unsatisfactory operation status with 3 inspected gearboxes. Measured values were identified as being above suggested caution limit of Alarm 2, representing a level of danger.

The most important goal of monitoring and analysis of vibration is to provide information on the operational and technical condition of equipment in order to ensure strategic planning and maintenance management. The article addresses integration of vibrodiagnostics into the system of predictive maintenance in the operation of turbo generators of a small hydropower plant. Small hydropower plants are specific for their ability to provide relatively stable output without unnecessarily burdening the transmission system. Modern turbines are expected to be highly efficient and reliable in operation. By including these devices into the predictive maintenance system, it is possible to identify their possibly unusual behavior, estimate the remaining service life, and draw attention to incorrect setting of operating parameters. The task of research in this area was to evaluate the applicability of data obtained from vibrodiagnostics to identifying turbo generator failures and key parameters that may have a potential impact on the behavior of this type of equipment.