Loading

Ody Hand 2.0

by profbink, published

Ody Hand 2.0 by profbink Mar 4, 2014
0 Share
Download This Thing! Customize Order This Printed Tools & Utilities

Thing Info

10845Views 3090Downloads Found in People
Report Thing

Summary

This hand is for our friend Odysseus, who lives in Greece. It is intended to be a starter hand for children with no fingers, a small palm and some ability to flex and extend the wrist. I decided on two fingers and a thumb, so that Ody would only be fighting the resistance of three digits. Short, blunt fingers reduce the chance of putting one's eye out. ;)
A quick video showing mechanical function. Cabled with 1.2mm nylon monofilament line.
https://www.youtube.com/watch?v=QoYfqPWKN-k&feature=youtu.be
Here's a little video intro to the original Ody Hand: https://www.youtube.com/watch?v=gM8aV6coqEE
https://www.youtube.com/watch?v=jE4xYu7EqU4&feature=youtu.be
For more information or to get involved, visit http://enablingthefuture.org/
Files last updated Feb 22 2016

Instructions

For Ody Hand 2.0 and beyond, these instructions are the most useful:
https://docs.google.com/document/d/1xbfhPYKO-4hcpnAmYpvGPY-vzPpO1QTiwvFZkcN3034/edit?usp=sharing
Here are instructions for the original Ody Hand:
https://docs.google.com/document/d/1vJ-PtmFIwVkH40VfMw4m3pqWTApRizhIPzMrzEmNxDc/edit?usp=sharing
You can print everything but the finger distals with no support. The Ody Hand is essentially a Talon Hand, but with fewer fingers.

If you watch and read all the tutorial material and still get stuck, or if you have any suggestions or additions, ask me in the comments!

More from People

view more

Thing Info

10845Views 3090Downloads Found in People
Report Thing

Liked By

View All

License

GNU - GPL
Ody Hand 2.0 by profbink is licensed under the GNU - GPL license.

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

All Apps

This App connects Thingiverse with Makeprintable, a cloud-based mesh repair service that analyzes, validates and repairs most common mesh errors that can occur when preparing a 3D design file for p...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

This is an awesome design! I fully appreciate that creating the stl directly in Blender is the right answer for this design. Getting the curves right in a CAD program would be a nightmare.

However, what happens to the passages and holes when the design is scaled? Don't they get smaller also? Is that a problem?

Aren't there "source" files created in Blender? Could those be posted? If not, a useful compromise would be to create the stls without the holes and passages. Then use OpenSCAD to create the necessary holes. This way the scale would be independent of the hole/passage size. Spacing could be a parameter so that they landed in the right places. Now that I think about it, this could be done with the existing stl files to solve issues with scaling (if there are any).

Blender is what I know, so there are no parametric tweaks here. Snap pins go a long way to solve hardware sizing issues, but still many holes need hardware and you have to guess, and possibly drill and ream out holes to persuade a good fit at different print scales.

What is the purpose of the long extensions under the finger tip of the ody_distal? Is this to provide a base for support material or what? Is it to be cut off and sanded away after printing?

Also, what is the purpose of the the three versions of Ody_Bars? Are all three used? If not, which version is actually used?

Finally, which version of the KnucklePins should be used? Why are there two versions.

Thanks. I am preparing to print this as my "test hand". I've watched the videos about building it (or it's big brother), but I'm unclear about a few details.Hence the questions.

The long extensions are support material. I added them so you could print with zero support settings and not have to clean support material out of tiny channels. They work really well on that overhang, even if your printer over-extrudes a bit. Break them off and file them down.
Sorry about the three versions of Ody Bars. Now you'll find only two files for arm bars: OdyBarsFat3, which has spacers for a single strap, and ArmBarsStrapFat2.2, which has spacers for two straps.
The two versions of knuckle pins have different removal strategies. The head versions can be removed with the blade of a knife, but the other version needs a small screw to turn into the hole, then pull out. Print both and see which you prefer; it's not much filament wasted.
I'm working on some decent instructions for the Ody Hand and Talon Hand, including bills of materials. Stay tuned..

Thanks for the clarifications. Indeed, the distal prints great without support. Much better than trying to clean out the support material from those little passages.

Where did you find the 0.050" weedeater filament? The smallest I could find at Lowe's was 0.065".

Your instructions will be much appreciated.

Yeah, those distals were the only thing I needed to print with support on my over-extruding printer. Adding support structures to the model itself has saved me hours of post-print drudgery.

0.050" round trimmer line is not easy to find. I had to order it online. I recently found some fishing leader on ebay in diameters between 1mm and 2.2mm in 0.2mm increments. I ordered some today and I'm going to try it out.

Here are the instructions I'm working on. I'm sorry about how messy and disorganized it is. I really need some diagrams and photos.
https://docs.google.com/document/d/1vJ-PtmFIwVkH40VfMw4m3pqWTApRizhIPzMrzEmNxDc
https://docs.google.com/document/d/11pPbPourhCd6CNustQRXojuoTAmhSqlN1P9dXZiqCLE

Hello,

My company FATHOM is trying to donate an Ody hand to a girl in need but we want to make some modifications for her. Can you please share the 3D CAD files (solid works, step, or Iges)? If you prefer to contact me thru email you can reach me at [email protected]

The Ody Hand was modeled in Blender, which works directly with meshes. There are no solid body or CAD files. Sorry.
If there are specific modifications you would like to see, let me know, and I'll see what I can do.

Top