Robotic Hand v3.0
Derived from
Description
**Version 3.0 Video of the Robot Hand in action:**
youtu.be/7AlyGPnU6U0
**Version 3.0 Flickr Set:**
flic.kr/s/aHsjxvAHJg
**Version 2.0 for reference:**
thingiverse.com/thing:2408
Instructions
Stats: 32 plastic parts (10 distinct parts, the rest are duplicates). 23 M3x12 screws, 23 M3 hex nuts, 5 strands of fishing line, between 15 to 45 dental rubber bands (I used 3 bands per joint).
Questions? Comments? Kudos? :-)
Please don't forget to give attribution.
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Hello, I am a hand prosthetic user, your hand seems reallt good, how do you control the fingers? By pulling the cables with the other hand?
Part I is a pretty tough print - but, fishing line tied around an M3 nut would do the trick nicely.
Nice, you've got me thinking about Thing from the Adam's family on this one.
How has the fishing line been working for you? Have you had any problems with slack in the line when you let loose of the controls?
I've been asked to make a cable controlled version of Vogal and ABS filament just seems to have too much stretch in it over 2 or 3 feet to provide a quick response t
o the controls.
The fishing line has been great for my application. The fingers snap back in place as soon as you release a line. You can control the quickness of the snap with the number of rubber bands you attach at the joints. Also, you can adjust which joints fold first in a finger by adding or subtracting rubber bands at particular joints. It's simple but effective.
License
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What size dental rubber bands did you use? I see them in multiple sizes.
One of the images posted shows the packaging of the rubber bands I used. They are 1/4" diameter 'orange' elastics from TP orthodontics. I'm not sure why the images posted don't render properly anymore but you have to click 'view full size' to view them.