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Design News, March 2013

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Contents continued 68 xx 68 Mechatronics gadget freak Finding the Right Hydraulic Force Ed Nauman found using a hydraulic press to straighten a piece of material involved guesswork,so he created a gadget that indicates the actual force applied. Find information on using heavy copper and EXTREME copper in PCB design and fabrication for maximum reliability, as well as a report on farm,war machines ruling the professional service robot world. 28 design decisions 30 Automation in Rollforming 24 data Measurement & analysis green Scene Environmental News Engineers Can Use Departments 14 News Trends,Developments, Breakthroughs 64 Rotary Encoders — Part 3 26 design engineering Products Mechatronics Best of the Engineering Marketplace AngularVelocity — Misunderstood & Misstated Supplements These stories, and more, also appear online at www.designnews.com. DESIGN NEWS® (ISSN 0011-9407) is published monthly by UBM Electronics, 600 Community Drive, Manhasset, NY 11030; 516-5625000. Periodicals postage paid at Manhasset and at additional mailing offices. SUBSCRIPTIONS – Free to qualified subscribers as defined on the subscription card. Rates for non-qualified subscriptions, including all issues: U.S.A, $150.00 one year, $250.00 two years, $300.00 three years; Canada, $184.90 one year, $314.90 two years (includes 7% GST, GST# 123397457); Mexico, $172.90 one year, $295.90 two years; Foreign air expedited $323.90 one year, $579.90 two years. Except for special issues where price changes are indicated, single copies are available for $10 U.S.A and $15 foreign. For telephone inquiries regarding subscriptions 847-559-7597. Email: desn@ omeda.com. CHANGE OF ADDRESS – Notices should be sent promptly to DESIGN NEWS® P.O. Box 3609, Northbrook, IL 60065 – Please provide old mailing labels as well as new address. Allow two months for change. NOTICE – Every precaution is taken to ensure accuracy of content; however, the publisher cannot accept responsibility for the correctness of the information supplied or advertised or for any opinion expressed herein. POSTMASTER – Send address changes to, DESIGN NEWS® Box 3609, Northbrook, IL 60065, Canada Post: Publications Mail Agreement 40685520. Return undeliverable Canadian addresses to: APC, P.O. 503, RPO West BVR CRE, Rich Hill, ON L4B 4R6. Printed in U.S.A. Copyright 2011 by UBM Electronics. All rights reserved. Reproduction in whole or part without written permission is prohibited.

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