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Title: Force-controlled automatic microassembly of tissue engineering scaffolds
Authors: Zhao, G. 
Teo, C.L. 
Hutmacher, D.W.
Burdet, E. 
Issue Date: 2010
Source: Zhao, G.,Teo, C.L.,Hutmacher, D.W.,Burdet, E. (2010). Force-controlled automatic microassembly of tissue engineering scaffolds. Journal of Micromechanics and Microengineering 20 (3) : -. ScholarBank@NUS Repository.
Abstract: This paper presents an automated system for 3D assembly of tissue engineering (TE) scaffolds made from biocompatible microscopic building blocks with relatively large fabrication error. It focuses on the pin-into-hole force control developed for this demanding microassembly task. A beam-like gripper with integrated force sensing at a 3 mN resolution with a 500 mN measuring range is designed, and is used to implement an admittance force-controlled insertion using commercial precision stages. Visual-based alignment followed by an insertion is complemented by a haptic exploration strategy using force and position information. The system demonstrates fully automated construction of TE scaffolds with 50 microparts whose dimension error is larger than 5%. © 2010 IOP Publishing Ltd.
Source Title: Journal of Micromechanics and Microengineering
ISSN: 09601317
DOI: 3/035001
Appears in Collections:Staff Publications

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