GrabCAD, an online community of over 180,000 mechanical CAD engineers, has launched a design challenge tasking members to model a damping device for wind breaker doors for Mega Yacht maker Lürssen. The winners will have the opportunity to win cash prizes totalling $4000. The competition begins on May 15 and will close on June 5, 2012. For more information or to view submissions, visit: http://grabcad.com/challenges/damping-device-for-wind-breaker-doors-for-large-mega-yachts