Recent Progress in 3D Printed MoldBased Sensors The paper presents a review of some of the significant research done on 3D printed moldbased sensors performed in recent times. The utilization of the master molds to fabricate the different parts of the sensing prototypes have been followed for quite some time due to certain distinct advantages. Some of them are easy template preparation, easy customization of the developed products, quick fabrication, and minimized electronic waste. The paper explains the different kinds of sensors and actuators that have been developed using this technique, based on their varied structural dimensions, processed raw materials, designing, and product testing. These differences in the attributes were based on their individualistic application. Furthermore, some of the challenges related to the existing sensors and their possible respective solutions have also been mentioned in the paper. Finally, a market survey has been provided, stating the estimated increase in the annual growth of 3D printed sensors. It also states the type of 3D printing that has been preferred over the years, along with the range of sensors, and their related applications.

Design of a Novel Gripper System with 3D and Inkjetprinted Multimodal Sensors for Automated Grasping of a Forestry Robot Future industrial robotic systems increasingly rely on automation of dangerous and tedious tasks. The acquisition of diverse and partially redundant information using reliable and rugged multimodal sensors helps to improve the safety an dependability of such systems. In this paper we propose proximity sensors suitable for the integration into the gripper of a forestry robot. The suggested sensors are complementary to vision based data acquisition as it can in particular provide information on objects close to the gripper that could otherwise not be obtained due to occlusion and missing direct line of sight. We present the design, fabrication and evaluation of 3Dand inkjetprinted capacitive sensors for grasping applications in harsh industrial environment, especially forestry robotics. The sensor elements have been developed along with a complete gripper redesign. The suggested fabrication strategy allows retrofitting of various industry components and reduced maintenance and costs as well as applicationspecific design and optimization and are also suitable for wireless operation. The developed gripper allows the support of grasping tasks by providing proximity and contact information.