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HNX540-C101 review

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Hi, I’m Yoshi from ROBOTIS Japan.
I tried using HNX540-C101 that just-released on July 2021.
The application is a Humanoid robot upper body, the name is Rakuda-2.
The place is the turning axis of waist. As you all know, the rigidity of the servo flange is important because it creates a large load here.

Application : Rakuda-2

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1. Attached to XM540. Horn is 4mm thick.

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2. This time, I also use needle thrust bearings to increase the rigidity of the joints.

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3. Insert Φ2 knock pin. This knock pin hole is my favorite.

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4. Attach the 3D printed bracket. This bracket’s material is Polymaker PC-FR. Rigidity is higher than ABS.

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5. Assembled image. It looks rigid.

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HNX also has X430 type. It may be good to use it for ID11 of OpenMANIPULATOR-X.


HNX430-C101 ROBOTIS Shop
HNX540-C101 ROBOTIS Shop
Rakuda-2 example Github

Hi @shiba_8ro, thanks for making this very informative post! It’s very interesting to see the new style HNX540-C101 horn in action.

The new design of the HNX540 & HNX430 style horn looks like it adds a lot of strength with the option to tighten using a set-screw. It would be a great option to use for the base ID#11 of OpenManipulator-X like you mentioned. We’ll have to explore what other applications the new horn designs can improve as well!

Rakuda-2 looks amazing! Hopefully in the future we can share more content based on that platform :slight_smile:.