Very nice! You are like the only one that has been developing miniature hands. I thought you and your project were history, lost forever.
Do you have rubber around the fingers? I think it would be great to see the joints personally; it would look more robotic looking. Right now, the fingers look like little hot dogs.
Question:
A servo can make all the fingers move, but how do you plan to move individual fingers?
This hand is so diminunative that I was able to use the type of balloons that entertainers use to twist into animals to skin the phalanges. The final version will be assembled from peices that are cast in a mold to more resemble a robotic hand. The unit I develop for Robonova will be more stout looking. I plan on, though, developing an entire upper body with elegantly sculped features that are much more anthropomorphic and biomemetic than are currently produced. I’d like to see the arena of bot combat take a turn for realism. I plan on giving my Robonova the capabilty to draw a weapon and use it. How fun would that be? Lay some weapons about the area (Warhammers, poles, axes, swords, shields, etc…) and give the combatants a skin that can take some visable damage…
I think it would be a lot more fun to watch.
I want the user to be able to decide how many fingers they’d wish to move. You could move them all with one servo or you could move each seperatly with five. I will probably use one initially but if I go to a show with it I’ll prolly group the thumb, ring and pinky together and the middle and the point fingers will have independant servos (3 servos).
I will post the hand on my bot as soon as I’m finished with it. I’m sure you will like it.
Its shown in the pictures next to the forearm braket of a Robonova-1 for size comaprison. This version is just the skeleton. I mean to flesh it ouut a bit more and make the movements a bit more fluid. I don’t know if I’ll add this one to my RN as it seems to be a bit large.
I may just post a few assembly pictures so that you could make your own instead of bothering with a kit.
Well what Im am curious about doing with something like this would be to see if I can control each finger individually, so it could (for example) perform the peace sign ect.
Now I have to find out which leads on the variety of servos I posses must be switched about to properly match the Hitec controller.
I tweaked the thumb around to bring it further into oppostion to the finger and the hand grips even better. So, excited as I was, I proceeded to mount it at the end of RN-1s arm and he looks like a cartoon:
Considered to be the most advanced Dextrous Hand in the world!
The Shadow Hand is the closest robot Hand to the human Hand available. It provides 24 movements, allowing a direct mapping from a human to the robot.
The Shadow Hand has integrated sensing and position control, allowing precise control from off-board computers, or integration into your existing robot platform.
The Shadow Hand contains an integrated bank of 40 Air Muscles which make it move. The muscles are compliant, which allows the Hand to be used around soft or fragile objects.
The Shadow Groups project comes up eventually in all of the forums I’ve posted this project on.
While their hand is a marvel of enegineering it alone occupies more space than three Robonovas. It is prohibitivly expensive and IMHO the pnumatic muscles are extremely problematic control wise. I’d love to work with those kind of resources and be free to create along with minds like theirs.
I think actuators like the ones they use will move robotics in very interesting directions as the overall packaging of the system is streamlined.
Your hand is looking fantastic. While individual movement would be ideal, I’m prepared to sacrifice it so that I can grip with a single servo. I’m interested in making my own biped that resembles the Sony QRIO (I’m modeling the general form in CAD and will have it printed via a rapid-prototyping service bureau). I’m planning on using Vstone’s RB2000 as a base for servos and controller board (supports up to 30 servos).
I’m going to need a pair of hands like the ones you’ve designed. Would you be willing to post some technical drawings (or better photos) so that I could learn from what you are doing? I get the general idea but it would be nice to see where exactly the cords are pulling on the fingers. The hands I plan on designing should work roughly the same way as yours but hopefully smaller as I don’t think each digit needs to be quite as long.