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I wanted to let Patrons know what the status is with RUR. The next part of the plan is to build the arm, which I'm intending to have wrap around the lower section of the robot's body so it's nice and neat when it's driving around, and also not too front/side heavy.

It looks very much like ROBOTIS will be providing Dynamixel servos for this part of the project (and possibly other projects), and that conversation is happening at the moment. The arm will be largely designed around the servos, so for now the image above should serve only to demonstrate the idea. 

The arm is pretty much a SCARA arm, since the body of the robot can move up and down the 'utility stick' in any case, although it may get an additional linear axis at the wrist as well. It's likely that I'll try different types of wrist/manipulator etc, so to begin with there will likely just be a simple gripper mounted on the wrist.

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Anonymous

Looks great! Love the wrap-around design!

Neil Devonshire

Very good idea, it's great that it's all modular, are you going to have multiple grabbers built on a rotating platform on the base? It could drop off and collect different attachments as needed. Really nice design 👍

XRobots

That's not a bad idea, it would need some sort of electrical connection docking as well. Possibly something for the future.

Darius Zaerin

its looking very very cool! having real world applications makes this one of the most exciting robots you've developed, and i can't wait to see it in action!

Anonymous

Brilliant idea, especially if this robot is called Really Useful :) I’d like to see a whisk attachment to make scrambled eggs

Anonymous

It looks amazing. Excited to see this come to life

Scott Cress

Thinking about the hand specifically. There's a YouTuber named Will Cogley. He's currently building a biomimetic hand meant for possible prosthetic replacement application. It is open source and looks amazing. Currently he's not posting much as he's had financial issues and had to take a full time job and he's quite busy. I would request /suggest using his hand his on the RUR as a hand that works as much like a human hand would be hopefully the most useful of hands. Second on consideration is that he's only got 65K subs and your almost 1M subs may give him the added recognition his amazing work needs. And boosting his viewership would also be a hopefully helpful financial assistance. Third for consideration is that his engineering seems to me, a layman who has zero experience building actual robots or robot hands, really good. Having someone like you who has a deep robotics pedigree trying to build his hand may be a great collaborative situation. Here's the link to his channel. https://youtube.com/c/WillCogley

XRobots

I've been subscribed to Will for a while. That hand is looking good, and incredibly detailed. It would probably make a good collaboration when the world is a bit more normal again (looks like he's in the UK too).

XRobots

I considered it, but since the body of the robot already lifts up and down I don't really need any more axis that lift. There's much less load on the joints with a SCARA arm because they are always horizontal.