Railroads are large, linear pieces of civil ... far beyond model railroads. It’s an option for any time you need to move a few mm scale object in 2D. Image courtesy David K.

Launching things with electromagnetism is pretty fun, with linear induction motors being a popular design ... akin to a steam piston with a steam catapult. Model airplane sparking its way through ...

Tubular linear motors have some interesting advantages in typical applications, including no wear components, no seals to fail, and flexible control. This model incorporates iglidur X guide ...