That’s what [Ali] from PotentPrintables did with these 3D-printed linear actuators. It’s a simple rack-and-pinion design that’s suitable for light loads and comes in two sizes, supporting ...

The Matterhorn Gotthard Railway (MGBahn) and Stadler have unveiled what they claim to be the world's “fastest” rack-and-pinion railway. The new "v+" rack-and-pinion braking system, presented ...

He’s really thought through the problems he observed with his first revision, and the result is a robust, powerful linear actuator. The pinion fits a trimmed servo crank arm, the mating rack is ...