Wind Up Toys (image) Association for Computing Machinery Share Print E-Mail Caption Wind-up mechanism of Angry Bird constructed by the researchers' method (left), 3-D printed wind-up toy (right). The method constructs and optimizes a compact and lightweight internal wind-up mechanism to realize user-requested toy motions. Credit Courtesy of ACM SIGGRAPH Asia 2017 Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.