Railroads are large, linear pieces of civil engineering ... and [Martin] is using printed paper covering rather than 3D track. Items like autos and boats can be automated as well.

Unfortunately, long-throw linear actuators are a little harder to come by, so it’s nice to know you can 3D-print linear gearing for standard micro RC servos and roll your own. Currently on ...

Insight on Diodes Inc.’s first automotive-compliant 3D linear Hall-effect sensor. How it allows for reliable and high-precision contactless rotary motion and proximity detection. Application ...