When taking macro photographs, you often need just a tiny bit of controlled motion — so little that it’s tough to pull off by hand. To address this, [Salveo] designed a small open-source macro ...

In the early days of 3D printers, most builds used smooth rods and bearings that rode on them. But these days, printers are shipping with either V-slot extrusions with Delrin wheels or linear rails.

Have you ever opened a drawer in your desk? Or moved a sliding door? What about operating a conveyor belt in an automation line? With any of these activities, chances are you have used a linear guide ...