[2n2r5] posted up a mechanism that we’d never seen before — a threadless ballscrew that turns rotational into linear motion with no backlash. It works by pressing the edge of three bearings fairly ...

Most 3D printers use leadscrews for at least one axis. These are simple devices that are essentially a steel screw thread and a brass nut that travels on it. However, for maximum precision, you’d like ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. For the last 10 years or so, 3D printing has been a popular buzzword ...

This research was funded by the Engineering and Physical Sciences Research Council (EP/N024818/1). The authors declare that they have no known competing financial interests or personal relationships ...