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A picture of the back of the hand.
Then I got playing around with some Flex sensors sewn to a glove I made awhile ago when I first made my InMoov. It took a lot of work, back then, to get it work with an Arduino. So I followed the tutorial on Flex sensors by Steve G and it was EZ to hook up to the v4. Nice tutorial Steve!
Sorry about the quality of this video.
My next goal with this project is to get it running with some ECG leads to control it by flexing muscles.
I've been working on a new hand idea for my InMoov robot. I seriously hacked the Exiii Handii. Their original design had the thumb and index finger moving independently and the other three fingers moving together. I changed it so that all of the fingers move independently and I managed to get all of the finger servos in the hand. I added a wrist movement using one of EZ-Robots Lever servos and the forearm and wrist rotation is from the original InMoov design. Of course it is all controlled with an EZBv4.
Here's a video of it working.
A picture of the back of the hand.
Then I got playing around with some Flex sensors sewn to a glove I made awhile ago when I first made my InMoov. It took a lot of work, back then, to get it work with an Arduino. So I followed the tutorial on Flex sensors by Steve G and it was EZ to hook up to the v4. Nice tutorial Steve!
Sorry about the quality of this video.
My next goal with this project is to get it running with some ECG leads to control it by flexing muscles.
By bhouston
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cool your new Hand!
But now its difficult to say what is better (both version are cool)
Your are the Expert, so what is your opion? Which is better?
Better to print, better for craping things?
What i see until now, the new hand looks definitiv more like a real Hand!
You know if people have a choice, the problems beginns ;-)
Boris
PS:
But all new Hands are better then the old one!
other question:
Do you think about to install pressur sensors to the fingers?
Maybe its possible to make a little hole in the inside of the finger tops
only 0,2 millimeter inside and 5 mm circle
for the fsr400short
http://www.produktinfo.conrad.com/datenblaetter/1000000-1099999/001008977-da-01-en-DRUCKSENSOR_FSR400SHORT.pdf
so then its possible to glue the Pressur Sensor inside the finger (thats why the hole - the pressur sensor will be with the finger in one piece)
and check out the pressur.
It only a idea - or do you have a better idea to check the finger pressure?
Boris
PS:
After 5 times watching the new hand (with flex) i like it really much! More and more
do you check this FilaFlex Hand Version from April 2015:
https://www.thingiverse.com/thing:754513
Boris
The Handii hand doesn't grasp objects very at all. Watching the videos, I think it was made to pinch small objects between the thumb and index finger - and that's about it but it does that well.
Adding pressure sensors in a few key locations would definitely good to do as would adding some rubber pads, to improve the grip. Maybe they could be integrated into one. Something to work on.
I'm going to try and print the Flexible Fingers - looks tough, I don't think the flexible filament will work well for the supports needed.
so do you print from the new hand, the fingers with PLA/ABS or with FilaFlex?
So for my opinion, the last version is the best. If you have an idea so make some of these rubbers what you mean, with place for the pressur sensor, i take it ;-)
So my biggest wish for christmas:
Please BOB share this cool hand!
I want to give my "Hansi" Inmoov some Hands as a present.
Boris
PS:
Do you see Gael uploaded the mid Stomach
http://inmoov.fr/inmoov-stl-parts-viewer/?bodyparts=Mid-Stomach
http://inmoov.fr/inmoov-stl-parts-viewer/?bodyparts=Low-Stomach
http://inmoov.fr/mid-stomach/
I think I'm going to clean up the Flexihand and install it on my InMoov and then compare it with the original design that way. I really like the Flexihand's capability to grasp objects.
@Renta, Tough to share the build other than with photo's. Really - I just started hacking and hot gluing things in place till it worked. I am going to make a proper servo bracket though. I'll keep you posted.
no problem with photos! I know the fingers i can download from : https://www.thingiverse.com/thing:380665
my question to this: do you also print this with FilaFlex?
The servo Bed, the Covers and the Wrist Holder.... there is the question( if you are finish and lucky with your design) if you share this stl files to us?
Best wishes
from Boris
Did you have to make any design changes to the original stls in order to get the servos to fit into the hand and also the extra wrist joint?
Thats it! You got it!
With this Hand your Mission to the next level has success!
I love it!
Like Richard asked: I understand the stl files for the fingers come from thingiverse. But from where we will get the stls for the Hand middle and the cool Wrist.
This was also my old question. Do you will upload you new design STL Files for the Hand? Like you did with the Upgrade Neck Version!
I must make this Hand for my Inmoov!
Boris
PS: You are a Genius!
Excellent.
nice video!
Slowly i check out what you did!
Ok, a dremel i have!
I think the middle of the Hand i must print with PLA and the Fingers with FilaFlex?
Or only the FFX parts with FilaFlex?
Can you tell us which parts you use?
I think its:
RH_Hand_Body.stl
LH_Hand_Body.stl
RH_Finger_Plate.stl
LH_Finger_Plate.stl
2x FFX_-_Finger_Hinge_Plate.stl
But i did find the Covers for Hand inside and outside (Left and right)
And can you tell me where i can download this EZ-Holder?
Boris
The EZ Robot servo holder is found in Community/3D Printing, here's a link,
http://www.ez-robot.com/Community/Revolution/EZBitDetails.aspx?guid=262d8448-c0b2-4402-a91f-6e5e7e6b9144
The palm cover is here - http://www.thingiverse.com/thing:380665/#files
I filled it in then printed it. I had to increase the size so you have to play with it a bit.
oki doki now i think i will start to print!
But the cover still make me problems.
I can´t fill holes in a 3d program!
Maybe if you design later some cool covers for the hands and maybe a cool wrist, you can share.
Meanwhile i will print all stuff, what i can print and then we will see.
Boris
PS: Your idea with the IR Sensor is great! Easy to build, but i must say a huge possibility!
I will try to put some pressur sensors in the fingertops, that the inmoov will know when he grap to hard.
I inform you what i will done!