Title
Computational design of passive grippers
Abstract
Editorial NotesThe authors have requested minor, non-substantive changes to the Version of Record and, in accordance with ACM policies, a Corrected Version of Record was published on August 1, 2022. For reference purposes, the VoR may still be accessed via the Supplemental Material section on this page.AbstractThis work proposes a novel generative design tool for passive grippers---robot end effectors that have no additional actuation and instead leverage the existing degrees of freedom in a robotic arm to perform grasping tasks. Passive grippers are used because they offer interesting trade-offs between cost and capabilities. However, existing designs are limited in the types of shapes that can be grasped. This work proposes to use rapid-manufacturing and design optimization to expand the space of shapes that can be passively grasped. Our novel generative design algorithm takes in an object and its positioning with respect to a robotic arm and generates a 3D printable passive gripper that can stably pick the object up. To achieve this, we address the key challenge of jointly optimizing the shape and the insert trajectory to ensure a passively stable grasp. We evaluate our method on a testing suite of 22 objects (23 experiments), all of which were evaluated with physical experiments to bridge the virtual-to-real gap. Code and data are at https://homes.cs.washington.edu/~milink/passive-gripper/
Year
DOI
Venue
2022
10.1145/3528223.3530162
ACM Transactions on Graphics
Keywords
DocType
Volume
passive gripper, generative design, additive manufacturing, fabrication
Journal
41
Issue
ISSN
Citations 
4
0730-0301
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Milin Kodnongbua100.34
Ian Good201.01
Yu Lou300.34
Jeffrey Lipton400.34
Adriana Schulz5568.91