1. Technical University of Cluj-Napoca, Faculty of Mechanical Engineering, Department of AET, Discipline of Descriptive Geometry and Engineering Graphics, 103-105 B-dul Muncii St., Cluj-Napoca 400641, Cluj, Romania
2. University of Warmia and Mazury in Olsztyn, Faculty of Technical Sciences, M. Oczapowskiego 11, 10-719 Olsztyn, Poland
3. University of Warmia and Mazury in Olsztyn, Faculty of Mathematics and Computer Science, Sloneczna 54, 10-710 Olsztyn, Poland
4. Center for Micro-BioRobotics, Istituto Italiano di Tecnologia, viale Rinaldo Piaggio 34, I-56025 Pontedera (Pisa), Italy
5. Istituto Italiano di Tecnologia, Materials Characterization Facility, via Morego 30, I-16163 Genova, Italy