It's alive! And, it's disturbingly fast....

nice!

Cool 😎 Can knuckles also have similar flexible movements ?

Yes. Absolutely. The finger tips and knuckles connect to the long flexors that travel down into the forearm. I didn’t have those connected in this video, but I’ll post the whole thing working soon.

Probably the hardest part of the humanoid, may be other than brain...

Definitely. There’s a lot of moving parts in here. Hopefully someone is also working on the brain part as we’ll need that shortly.