Search found 10 matches

by Nicholas Hall
Fri Jan 22, 2016 3:22 pm
Forum: Hands
Topic: Grip Force Multiplier Ratchet by Eric de Bruijn
Replies: 0
Views: 1228

Grip Force Multiplier Ratchet by Eric de Bruijn

Looking at Drew Murray's Abby Ratchet jogged my memory about a design posted by Eric de Bruijn in Sept of 2014. I wanted to post it before the idea was completely forgotten, because I think it's one of the most promising avenues of exploration I have seen since 2014 and no-one is really working on i...
by Nicholas Hall
Thu Jan 14, 2016 8:13 pm
Forum: Terminal Devices/Tools
Topic: Terminal Device Mounting System by Aaron Brown
Replies: 0
Views: 792

Terminal Device Mounting System by Aaron Brown

Aaron Brown designed a hand with modified picatinny rail at the end instead of fingers in fall 2014. It's a great way to attach any imaginable number of terminal devices. I wanted to post it here so that folks thinking about terminal devices know that such a thing exists to mount the device on. A se...
by Nicholas Hall
Thu Jan 14, 2016 7:59 pm
Forum: Terminal Devices/Tools
Topic: Kayaking Arm
Replies: 0
Views: 723

Kayaking Arm

This was first posted by Jen Owen on the forum but I thought it belonged here as well. It's not a design, just a great example of a purpose build terminal device. Do you think that a printed version of this could be made and adapted to Aaron Browns Picatinny Rail hand? Would it be strong enough? The...
by Nicholas Hall
Thu Jan 14, 2016 7:06 pm
Forum: Hands
Topic: Improving Gripping Surface of Palms
Replies: 0
Views: 1459

Improving Gripping Surface of Palms

I posted this on the forum, but I thought I'd post it here as well because it has some hand links in it. I think that there is a lot of opportunity to improve gripping ability of e-nable hands by shaping the gripping area of the palm and increasing the friction of this area. Shapely, Sticky Palms Ma...
by Nicholas Hall
Thu Jan 14, 2016 3:41 pm
Forum: Beta Testing
Topic: Silicone finger tip mould
Replies: 27
Views: 6092

Re: Silicone finger tip mould

Also here is a link to some work I did on meshes and oogoo (cornstarch mixed with type 1 silicone). Laird Popkins wrote an open scad program for me that allows for the creation of any mesh you can imagine in any size. The bonding is incredible with oogoo. It's probably overkill for your application,...
by Nicholas Hall
Thu Jan 14, 2016 3:23 pm
Forum: Beta Testing
Topic: Silicone finger tip mould
Replies: 27
Views: 6092

Re: Silicone finger tip mould

Also here is a link to some work I did on gluing Oogoo (that's the generic name for silicone mixed with corn starch). https://plus.google.com/110736851786370579318/posts/81CGjvCNDNr This is really terrific stuff. I allows you to "paint" silicone anywhere on a finger or palm to get extra gr...
by Nicholas Hall
Thu Jan 14, 2016 3:12 pm
Forum: Beta Testing
Topic: Silicone finger tip mould
Replies: 27
Views: 6092

Re: Silicone finger tip mould

Here is a link to similar work that Andreas Bastian did last fall on a fingertip mold for the Raptor. He had a similar approach, but he used Sugru. Might be some useful info. https://plus.google.com/+AndreasBastian/posts/1HVXxsC4KZn Here is the instructables page: http://www.instructables.com/id/Sug...
by Nicholas Hall
Thu Jan 14, 2016 12:36 am
Forum: Beta Testing
Topic: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing
Replies: 165
Views: 36445

Re: The Phoenix Hand (previously Eagle Hand) fabrication and mechanical function testing

I'm obviously a bit late to comment on this hand, but this design is simply brilliant for the multitude of reasons highlighted above. Incredible work! Your contributions over the last year are astonishing.
by Nicholas Hall
Wed Jan 13, 2016 7:39 pm
Forum: Arms
Topic: The Modular Training Arm
Replies: 24
Views: 7517

Re: The Modular Training Arm

This is a simply astonishing piece of work Skip. I think I've probably said it before, but I'm a huge fan of your work. I particularly love that it's a normally closed hand. :) It's simple, elegant, but effective. I'm very curious as to how constant the force required to open the thumb remains over ...
by Nicholas Hall
Tue Feb 17, 2015 2:07 am
Forum: General Administrative
Topic: Processes and Procedures
Replies: 3
Views: 1194

Re: Processes and Procedures

Just testing my ability to post.

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