6 ms·

What jumps out at me is the $135 bill of materials. What a time to be alive!

jjangkke 1y ago
Most hand related jobs upwards of $100 per 30 min If this Robot hand can do those jobs we could see some industries take a hit
- delijati 1y ago
  https://m.youtube.com/watch?v=6pbgOmaBx34 https://m.youtube.com/watch?v=6pbgOmaBx34
- 0_____0 1y ago
  People have been making end effectors using hobby servos for ages. These servomotors are designed for use in an RC aircraft, they're light, cheap, and expendable. Industrial needs care not about weight, care less about cost, and care a great deal about capability, repeatability, and reliability. This is a cool project for a hobbyist but it's not meant to be a serious industrial machine. Edit: what is with this thread? Lots of very generic positive comments here but not much thinking about what this is actually useful for.
  - pwndByDeath 1y ago
    Woosh
    - 0_____0 1y ago
      oh....oh no....
  - radlad 1y ago
    I think the confusion stems from the fact that you're responding to a joke innuendo thread.
    - trhway 1y ago
      They just haven’t watched the Big Bang Theory episode with Howard and the robotic hand: https://www.youtube.com/watch?v=OYryogNE8Ys https://www.youtube.com/watch?v=OYryogNE8Ys
    - stefanka 1y ago
      Ooooh. For _that_ application you better have either enough elasticity or reliable force/torque sensors and a good control in place.
  - ACCount36 1y ago
    ...that's how it was in year 2020. What you're missing is: today, we're nearing the point where actual general purpose robots become viable. Which means: the purpose of a robot is no longer to sit at a factory line and precisely execute the same exact motions on repeat 24/7. The purpose of the next generation of robots is to learn generalized behaviors, adapt to circumstances, and carry out circumstance-specific actions with active sensor feedback. Which means completely different requirements for effectors. Which means: repeatability can go get fucked, for one.
    - lukan 1y ago
      Without repeatability, good luck tuning your robot to do anything reliable.
      - ACCount36 1y ago
        Real world isn't "reliable". If a robot can't correct for errors, it's not going to survive out there.
    - stefanka 1y ago
      > ...that's how it was in year 2020 Humanoid robotics research was pretty popular in the early 2000s already, with remarkable, reproducible results not only in videos. It’s definitively more present in the media now.
      - ACCount36 1y ago
        The bottleneck for general purpose robots is, and always was, AI. We've been in a continuous AI breakthrough since 2022. In 2000, this kind of thing was nonexistent.
  - stronglikedan 1y ago
    > Lots of very generic positive comments here but not much thinking about what this is actually useful for. How can you say that when the person you are responding to is talking about what this is actually useful for?
- kakapo5672 1y ago
  It took me a a distressingly long time to understand this comment. I'm kind of concerned, and have vowed to get out more.
  - cindyllm 1y ago
    [dead]
- MisterTea 1y ago
  > upwards of $100 per 30 min That is why I'm self employed.
- greggsy 1y ago
  Search for ‘teledildonics’ on YouTube for one of the most entertaining and comprehensive Emacs courses you’ll find on the internet.
echelon 1y ago
I can't wait for this to be put on a tall roomba base so it can clean my kitchen.
Animats 1y ago
Feetech is selling actuators which are mechanically R/C type servos, but have a bidirectional computer interface allowing the control computer to find out what's happening at the servo.[1] This isn't new; Dynamixel has been doing it for over a decade. But not at this price point. This Feetech servo is $17, while Dynamixel units start around $70 and go much higher.[2] The parts list has "need to be strong" for many of the small parts, but they are 3D printed PLA plastic. That's the low end of 3D printing. None of the videos show the hand handling anything. So this is really the proof of concept model. If there's enough interest, someone could make the parts by injection-molding of something better, such as polycarbonate or glass-filled nylon. The total plastic volume here is so tiny that the plastic cost is negligible, and there's no reason not to use a high-quality engineering plastic. Nobody seems to do hobbyist injection molding much. TechShop had a desktop injection molding machine, the CNC milling machines to make molds, and even Autodesk Moldflow to design them. But nobody used those tools. A few university maker spaces have similar machines. Because most of the world's plastic stuff is made by injection molding. [1] https://www.feetechrc.com/ https://www.feetechrc.com/ [2] https://www.robotis.us/dynamixel/ https://www.robotis.us/dynamixel/ [3] https://makerspace.engineering.nyu.edu/machines/pim/ https://makerspace.engineering.nyu.edu/machines/pim/
- mionhe 1y ago
  Mold design is still difficult when the parts aren't dead simple. The software I've seen is okay with the simple stuff, but once you get even a little more complex you have to understand simultaneously how to design good parts for molding and how to design good molds, both of which are heavily dependent on the type of plastic you're using and the size of the press you have access to. Not to mention how to machine good molds from metal, which is a challenge all on its own due to surface finish and tolerance requirements (and weird geometry that makes the CAM choke...) In other words, we're not really there yet to bring that activity into the hobby realm. But I hope that we're not too far away.
  - Animats 1y ago
    They're little linkage parts, mostly flat.[1] Some of those holes are bearings. None of those parts are hard to make, but they need to be strong. They could be made by CNC machining, or in quantity by injection molding, or stamping. But tiny working parts in 3D printed PLA will be too flimsy for that hand to do much work. Totally fixable problem. Then this hand can go to work. If this thing catches on, someone might sell an upgrade kit with stronger parts. The designer is already considering a servo upgrade. [1] https://github.com/pollen-robotics/AmazingHand/blob/main/assets/3DPrint.jpg https://github.com/pollen-robotics/AmazingHand/blob/main/ass...
mrbonner 1y ago
You haven’t accounted for the 3D printer yet.
stefanka 1y ago
It’s one of best designs I have seen, I admit. But for that price you cannot get absolute encoders outside the motor, reliable force/torque sensors (think picking up a strawberry), tendons (thread below). It might be too limited for research and real-world projects unfortunately.
- aaronblohowiak 1y ago
  Would adding AnySkin to the finger tips work? ( https://any-skin.github.io https://any-skin.github.io ) ?
  - stefanka 1y ago
    Depends entirely on the application I guess, but you'd get further for sure. Either way you are now confronted with more complex cable management and maintenance, and additional weight. You'd at least get around gravity compensation with that approach. Personally, I think you need a lot more sensors and complex sensor fusion to achieve acceptable dexterity to be useful outside of an industrial context and this comes at high costs
- deleted 1y ago
  [deleted]
proee 1y ago
Maybe this could be an add-on option for the K-Scale robot that is coming out soon? They want $1k for a 5 finger end effector hand. https://www.kscale.dev/ https://www.kscale.dev/

Most hand related jobs upwards of $100 per 30 min If this Robot hand can do those jobs we could see some industries take a hit

delijati 1y ago
https://m.youtube.com/watch?v=6pbgOmaBx34 https://m.youtube.com/watch?v=6pbgOmaBx34
0_____0 1y ago
People have been making end effectors using hobby servos for ages. These servomotors are designed for use in an RC aircraft, they're light, cheap, and expendable. Industrial needs care not about weight, care less about cost, and care a great deal about capability, repeatability, and reliability. This is a cool project for a hobbyist but it's not meant to be a serious industrial machine. Edit: what is with this thread? Lots of very generic positive comments here but not much thinking about what this is actually useful for.
- pwndByDeath 1y ago
  Woosh
  - 0_____0 1y ago
    oh....oh no....
- radlad 1y ago
  I think the confusion stems from the fact that you're responding to a joke innuendo thread.
  - trhway 1y ago
    They just haven’t watched the Big Bang Theory episode with Howard and the robotic hand: https://www.youtube.com/watch?v=OYryogNE8Ys https://www.youtube.com/watch?v=OYryogNE8Ys
  - stefanka 1y ago
    Ooooh. For _that_ application you better have either enough elasticity or reliable force/torque sensors and a good control in place.
- ACCount36 1y ago
  ...that's how it was in year 2020. What you're missing is: today, we're nearing the point where actual general purpose robots become viable. Which means: the purpose of a robot is no longer to sit at a factory line and precisely execute the same exact motions on repeat 24/7. The purpose of the next generation of robots is to learn generalized behaviors, adapt to circumstances, and carry out circumstance-specific actions with active sensor feedback. Which means completely different requirements for effectors. Which means: repeatability can go get fucked, for one.
  - lukan 1y ago
    Without repeatability, good luck tuning your robot to do anything reliable.
    - ACCount36 1y ago
      Real world isn't "reliable". If a robot can't correct for errors, it's not going to survive out there.
  - stefanka 1y ago
    > ...that's how it was in year 2020 Humanoid robotics research was pretty popular in the early 2000s already, with remarkable, reproducible results not only in videos. It’s definitively more present in the media now.
    - ACCount36 1y ago
      The bottleneck for general purpose robots is, and always was, AI. We've been in a continuous AI breakthrough since 2022. In 2000, this kind of thing was nonexistent.
- stronglikedan 1y ago
  > Lots of very generic positive comments here but not much thinking about what this is actually useful for. How can you say that when the person you are responding to is talking about what this is actually useful for?
kakapo5672 1y ago
It took me a a distressingly long time to understand this comment. I'm kind of concerned, and have vowed to get out more.
- cindyllm 1y ago
  [dead]
MisterTea 1y ago
> upwards of $100 per 30 min That is why I'm self employed.
greggsy 1y ago
Search for ‘teledildonics’ on YouTube for one of the most entertaining and comprehensive Emacs courses you’ll find on the internet.

echelon 1y ago

I can't wait for this to be put on a tall roomba base so it can clean my kitchen.

Animats 1y ago

Feetech is selling actuators which are mechanically R/C type servos, but have a bidirectional computer interface allowing the control computer to find out what's happening at the servo.[1] This isn't new; Dynamixel has been doing it for over a decade. But not at this price point. This Feetech servo is $17, while Dynamixel units start around $70 and go much higher.[2] The parts list has "need to be strong" for many of the small parts, but they are 3D printed PLA plastic. That's the low end of 3D printing. None of the videos show the hand handling anything. So this is really the proof of concept model. If there's enough interest, someone could make the parts by injection-molding of something better, such as polycarbonate or glass-filled nylon. The total plastic volume here is so tiny that the plastic cost is negligible, and there's no reason not to use a high-quality engineering plastic. Nobody seems to do hobbyist injection molding much. TechShop had a desktop injection molding machine, the CNC milling machines to make molds, and even Autodesk Moldflow to design them. But nobody used those tools. A few university maker spaces have similar machines. Because most of the world's plastic stuff is made by injection molding. [1] https://www.feetechrc.com/ https://www.feetechrc.com/ [2] https://www.robotis.us/dynamixel/ https://www.robotis.us/dynamixel/ [3] https://makerspace.engineering.nyu.edu/machines/pim/ https://makerspace.engineering.nyu.edu/machines/pim/

mionhe 1y ago
Mold design is still difficult when the parts aren't dead simple. The software I've seen is okay with the simple stuff, but once you get even a little more complex you have to understand simultaneously how to design good parts for molding and how to design good molds, both of which are heavily dependent on the type of plastic you're using and the size of the press you have access to. Not to mention how to machine good molds from metal, which is a challenge all on its own due to surface finish and tolerance requirements (and weird geometry that makes the CAM choke...) In other words, we're not really there yet to bring that activity into the hobby realm. But I hope that we're not too far away.
- Animats 1y ago
  They're little linkage parts, mostly flat.[1] Some of those holes are bearings. None of those parts are hard to make, but they need to be strong. They could be made by CNC machining, or in quantity by injection molding, or stamping. But tiny working parts in 3D printed PLA will be too flimsy for that hand to do much work. Totally fixable problem. Then this hand can go to work. If this thing catches on, someone might sell an upgrade kit with stronger parts. The designer is already considering a servo upgrade. [1] https://github.com/pollen-robotics/AmazingHand/blob/main/assets/3DPrint.jpg https://github.com/pollen-robotics/AmazingHand/blob/main/ass...

mrbonner 1y ago

You haven’t accounted for the 3D printer yet.

stefanka 1y ago

It’s one of best designs I have seen, I admit. But for that price you cannot get absolute encoders outside the motor, reliable force/torque sensors (think picking up a strawberry), tendons (thread below). It might be too limited for research and real-world projects unfortunately.

aaronblohowiak 1y ago
Would adding AnySkin to the finger tips work? ( https://any-skin.github.io https://any-skin.github.io ) ?
- stefanka 1y ago
  Depends entirely on the application I guess, but you'd get further for sure. Either way you are now confronted with more complex cable management and maintenance, and additional weight. You'd at least get around gravity compensation with that approach. Personally, I think you need a lot more sensors and complex sensor fusion to achieve acceptable dexterity to be useful outside of an industrial context and this comes at high costs
deleted 1y ago
[deleted]

proee 1y ago

Maybe this could be an add-on option for the K-Scale robot that is coming out soon? They want $1k for a 5 finger end effector hand. https://www.kscale.dev/ https://www.kscale.dev/