Getting the Ball Rolling: Learning a Dexterous Policy for a Biomimetic Tendon-Driven Hand with Rolling Contact Joints

Fuente: arXiv
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Autores principales: Toshimitsu, Yasunori, Forrai, Benedek, Cangan, Barnabas Gavin, Steger, Ulrich, Knecht, Manuel, Weirich, Stefan, Katzschmann, Robert K.
Formato: Preprint
Publicado: 2023
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author Toshimitsu, Yasunori
Forrai, Benedek
Cangan, Barnabas Gavin
Steger, Ulrich
Knecht, Manuel
Weirich, Stefan
Katzschmann, Robert K.
author_facet Toshimitsu, Yasunori
Forrai, Benedek
Cangan, Barnabas Gavin
Steger, Ulrich
Knecht, Manuel
Weirich, Stefan
Katzschmann, Robert K.
contents Biomimetic, dexterous robotic hands have the potential to replicate much of the tasks that a human can do, and to achieve status as a general manipulation platform. Recent advances in reinforcement learning (RL) frameworks have achieved remarkable performance in quadrupedal locomotion and dexterous manipulation tasks. Combined with GPU-based highly parallelized simulations capable of simulating thousands of robots in parallel, RL-based controllers have become more scalable and approachable. However, in order to bring RL-trained policies to the real world, we require training frameworks that output policies that can work with physical actuators and sensors as well as a hardware platform that can be manufactured with accessible materials yet is robust enough to run interactive policies. This work introduces the biomimetic tendon-driven Faive Hand and its system architecture, which uses tendon-driven rolling contact joints to achieve a 3D printable, robust high-DoF hand design. We model each element of the hand and integrate it into a GPU simulation environment to train a policy with RL, and achieve zero-shot transfer of a dexterous in-hand sphere rotation skill to the physical robot hand.
format Preprint
id arxiv_https___arxiv_org_abs_2308_02453
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Getting the Ball Rolling: Learning a Dexterous Policy for a Biomimetic Tendon-Driven Hand with Rolling Contact Joints
Toshimitsu, Yasunori
Forrai, Benedek
Cangan, Barnabas Gavin
Steger, Ulrich
Knecht, Manuel
Weirich, Stefan
Katzschmann, Robert K.
Robotics
Biomimetic, dexterous robotic hands have the potential to replicate much of the tasks that a human can do, and to achieve status as a general manipulation platform. Recent advances in reinforcement learning (RL) frameworks have achieved remarkable performance in quadrupedal locomotion and dexterous manipulation tasks. Combined with GPU-based highly parallelized simulations capable of simulating thousands of robots in parallel, RL-based controllers have become more scalable and approachable. However, in order to bring RL-trained policies to the real world, we require training frameworks that output policies that can work with physical actuators and sensors as well as a hardware platform that can be manufactured with accessible materials yet is robust enough to run interactive policies. This work introduces the biomimetic tendon-driven Faive Hand and its system architecture, which uses tendon-driven rolling contact joints to achieve a 3D printable, robust high-DoF hand design. We model each element of the hand and integrate it into a GPU simulation environment to train a policy with RL, and achieve zero-shot transfer of a dexterous in-hand sphere rotation skill to the physical robot hand.
title Getting the Ball Rolling: Learning a Dexterous Policy for a Biomimetic Tendon-Driven Hand with Rolling Contact Joints
topic Robotics
url https://arxiv.org/abs/2308.02453