This Design Idea utilizes an optical computer mouse's sensor for measuring rotation of a disk which can be mechanically connected to any sort of rotating apparatus. One feature is to allow adjustment ...

For a qualified optomechanical analysis of lens systems, centration measurements are the standard approach – especially when precision lenses with tight tolerances need to be checked for quality ...

Ball splines are special motion control elements that can transmit or resist torque and linear motion simultaneously. Learn how to select the right ball splines for your high-speed motion and rotation ...

A slider-crank mechanism is a typical design which converts rotary motion into linear motion. It is achieved by connecting a slider and a crank with a rod. Figure A depicts a mechanism utilized as a ...

Objective Like many sports involving high speeds and body contact, head injuries are a concern for short track speed skating athletes and coaches. While the mandatory use of helmets has managed to ...