<![CDATA[6 axis Robot humanoid arm (Question)]]>Hi, I have this arm rig that I'm trying to animate using IK and then have the rotations be free. Ideally, I'd like to animate the arm as smoothly as possible with the corresponding positions or rotations. The problem I haven't been able to solve is that each axis of the arm has only one rotation because it's mechanical, so the rig’s constraints and restrictions haven’t worked with the IK, and I haven’t been able to get it to work with Xpresso either. How could I fix this? Is it possible to upload the file so you can take a look at it? Big thanks.

Screenshot 2026-07-23 103031_sm.png

]]>https://cineversity.forums.maxon.net/topic/2408/6-axis-robot-humanoid-arm-questionRSS for NodeMon, 10 Aug 2026 12:08:55 GMTMon, 03 Aug 2026 08:55:50 GMT60<![CDATA[Reply to 6 axis Robot humanoid arm (Question) on Thu, 06 Aug 2026 20:19:33 GMT]]>@Lnrd_ said

...I need to be able to rotate the independent geometries while keeping the IK.

I'm not sure I understand that.

]]>https://cineversity.forums.maxon.net/post/9417https://cineversity.forums.maxon.net/post/9417Thu, 06 Aug 2026 20:19:33 GMT<![CDATA[Reply to 6 axis Robot humanoid arm (Question) on Thu, 06 Aug 2026 20:16:23 GMT]]>Yes! The parameter I was missing was the "Rotate to goal" checkbox. Now the problem I'm facing is that I need to be able to rotate the independent geometries while keeping the IK.

]]>https://cineversity.forums.maxon.net/post/9416https://cineversity.forums.maxon.net/post/9416Thu, 06 Aug 2026 20:16:23 GMT<![CDATA[Reply to 6 axis Robot humanoid arm (Question) on Thu, 06 Aug 2026 18:26:04 GMT]]>Have you watched this tutorial?
https://cineversity.maxon.net/en/tutorials/kinematic-limits-how-to-rig-robots

]]>https://cineversity.forums.maxon.net/post/9414https://cineversity.forums.maxon.net/post/9414Thu, 06 Aug 2026 18:26:04 GMT<![CDATA[Reply to 6 axis Robot humanoid arm (Question) on Thu, 06 Aug 2026 18:01:30 GMT]]>done, thanks

]]>https://cineversity.forums.maxon.net/post/9412https://cineversity.forums.maxon.net/post/9412Thu, 06 Aug 2026 18:01:30 GMT<![CDATA[Reply to 6 axis Robot humanoid arm (Question) on Thu, 06 Aug 2026 17:06:42 GMT]]>requested access for your project file...

]]>https://cineversity.forums.maxon.net/post/9410https://cineversity.forums.maxon.net/post/9410Thu, 06 Aug 2026 17:06:42 GMT<![CDATA[Reply to 6 axis Robot humanoid arm (Question) on Tue, 04 Aug 2026 09:25:12 GMT]]>Hi, sorry I mean, the restrictions of rotations works!

This is my basic rig without the upper rotations running independently. When you open the file, you'll see what I mean, I left a note.

Thanks a lot!

https://drive.google.com/file/d/1b84ro6FBgKtV5d9WeEgn5JviizWEzuNa/view?usp=sharing

]]>https://cineversity.forums.maxon.net/post/9403https://cineversity.forums.maxon.net/post/9403Tue, 04 Aug 2026 09:25:12 GMT<![CDATA[Reply to 6 axis Robot humanoid arm (Question) on Mon, 03 Aug 2026 12:59:28 GMT]]>You can post a link to the file and also I need to know how you want to animate it.
"the rotations be free"... I don't know what that means.

Also watch this:
https://cineversity.maxon.net/en/tutorials/kinematic-limits-how-to-rig-robots

]]>https://cineversity.forums.maxon.net/post/9399https://cineversity.forums.maxon.net/post/9399Mon, 03 Aug 2026 12:59:28 GMT