“Building a Lower-power Linear Actuator with Arduino: quite a few people have asked me about scaling down openDog to make it lighter and cheaper, so I thought I’d discuss the options in this ...

Arduino is a good option when it comes to actuator control. With Arduino, you can apply linear actuators in multiple projects, even those that require top precision speed and movement accuracy.

Most electromagnetic actuators are rotating motors, or some variation on the theme, like servos. However, it’s possible to do linear actuation with electomagnetics, too. [Adrian Perez ...

That’s what [Ali] from PotentPrintables did with these 3D-printed linear actuators. ... Oh, and the 5V regulator on the arduino may not (will probably not) supply enough current for a servo.

Instead, it employs low-cost linear actuators, 3D printed with a mechanism to lock the shaft. These actuators are powered by an N20 6 volt 30 RPM geared motor, ensuring efficient and reliable ...