3-D Printed Shaft (1 of 2) (IMAGE) VTT Technical Research Centre of Finland Caption 3-D printed shaft with sensing element and wiring Credit Antti Vaajoki, VTT Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.