If you are designing a product that requires any sort of smart-motion precision, spring parts that apply constant force or constant resistance are key mechanical design elements to consider. Two of ...

The Automated Doggie Door uses an inexpensive gearmotor to lift the door’s sliding panel but replaced the cable that typically would pull a load with a constant-tension spring, a patent-pending design ...

Spring are mechanical devices that store and apply kinetic energy. They’ve been around a long time and continue to play essential roles in a wide range of machines, vehicles, and engineering tools.