Using RC servo in Lego environment

[oracid]

In this video, I show how easy it is to use RC servo in Lego environment.

Note that the axis of a joint must never be directly attached to the axis of the servo to avoid lateral forces.

 

Edited October 19, 2018 by oracid

[Jonas]

I have just discovered and ordered this.

The servo has Lego compatible cross-axle as well as studs and holes. I plan to test it in some low-torque applications controlled by Arduino.

 

Edited October 24, 2018 by Jonas

[oracid]

18 minutes ago, Jonas said:

I have just discovered and ordered this.

These seem good .

I have ordered them too.

Thank you for sharing.

Unfortunately, I saw the same in red, but too late, https://www.banggood.com/4Pcs-KittenBot-Red-Color-270-Geek-Servo-with-Wire-for-LegoMicrobit-Smart-Car-p-1355435.html?rmmds=checkOutSuccess-bottom-alsobought__1&cur_warehouse=CN

[Essge]

I have seen these too, but how is the servo output lining up to Lego?
 

[oracid]

The Geek KittenBot servo has not very good 3D alignment with Lego, but you can adapt it easily.

In this thread, https://www.eurobricks.com/forum/index.php?/forums/topic/169482-brick-compatible-kame-quadruped-robot/ you can see how I made a Spider Bot with this servo.

In the video, at 2'02", you can see 1/4 yellow bush that I made cutting the 1/2 bush,  https://www.bricklink.com/v2/catalog/catalogitem.page?id=866#T=S&O={"iconly":0}

To do that, you hold this bush between two fingers and pass it on a little saw blade.

Don't hesitate to ask.