[Diffraction Limited] has been working on a largely 3D-printed micropositioner for some time now, and previously reached a resolution of about 50 nanometers. There was still room for improvement, ...

We may receive a commission on purchases made from links. As a reviewer of all things technology, I keep tools in my office that I use to measure the dimensions of the devices I write about. When ...

While often seen as a specialist instrument, digital calipers are actually easy to use and allow both enthusiastic amateurs and professionals to work and measure with much greater precision than can ...

Although old-school machinists typically prefer the mechanical vernier scale on their trusty calipers, many users nowadays buy calipers with a digital readout. These models often come with additional ...