Low-friction, high-stiffness ball guides support on one rail (top) or two (bottom). The trade-offs for this performance are higher cost and more noise. The shortest path between two points is a ...

Even with the most-sophisticated motion controller, designers can still find it difficult to attain precise linear motion unless the mechanical components are appropriately designed for the ...

Breaking into the world of auto racing is easy. Step 1: Buy an expensive car. Step 2: Learn how to drive it without crashing. If you’re stuck at step 1, and things aren’t looking great for step 2 ...

The earliest accounts of the manual wheelchair exist in documents from the sixth century. Surprisingly, the model used back then doesn’t look too much different than the one that wheelchair-bound ...