This paper presents an approach to in-hand manipulation planning that exploits the mechanics of alternating sticking contact. Particularly, we consider the problem of manipulating a grasped object using external pushes for which the pusher sticks to the object. Given the physical properties of the object, frictional coefficients at contacts and a desired regrasp on the object, we propose a sampling-based planning framework that builds a pushing strategy concatenating different feasible stable pushes to achieve the desired regrasp. An efficient dynamics formulation allows us to plan in-hand manipulations 100-1000 times faster than our previous work which builds upon a complementarity formulation. Experimental observations for the generated plans show that the object precisely moves in the grasp as expected by the planner. Video Summary -youtu.be/qOTKRJMx6Ho
In our recent work REF , we present a fast sampling-based planning framework for in-hand manipulations with prehensile pushes, where the pusher contact is guaranteed to stick to the object using the mechanics of the manipulations.
Stable Prehensile Pushing: In-Hand Manipulation with Alternating Sticking Contacts
2018 IEEE International Conference on Robotics and Automation (ICRA)
2018 IEEE International Conference on Robotics and Automation (ICRA)
Computer Science Engineering