Sustarevas, J; Kanoulas, D; Julier, S; (2021) Task-Consistent Path Planning for Mobile 3D Printing. In: Proceedings of the 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2021). (pp. pp. 2143-2150). Institute of Electrical and Electronics Engineers (IEEE)

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Abstract

In this paper, we explore the problem of task-consistent path planning for printing-in-motion via Mobile Manipulators (MM). MM offer a potentially unlimited planar workspace and flexibility for print operations. However, most existing methods have only mobility to relocate an arm which then prints while stationary. In this paper we present a new fully autonomous path planning approach for mobile material deposition. We use a modified version of Rapidly-exploring Random Tree Star (RRT*) algorithm, which is informed by a constrained Inverse Reachability Map (IRM) to ensure task consistency. Collision avoidance and end-effector reachability are respected in our approach. Our method also detects when a print path cannot be completed in a single execution. In this case it will decompose the path into several segments and reposition the base accordingly.

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