Search found 31 matches

by andreas
Mon Apr 11, 2016 10:38 pm
Forum: Arms
Topic: Project Unicorn
Replies: 3
Views: 919

Re: Project Unicorn

I know Jordan and Jen-- they're working with Sam, a colleague of mine, and KIDmob as part of Superhero Cyborgs. Part of the process is to involve the kids in the iterative design/prototype process, which I think is what this video is about. Sam and Jordan and working together to see if they can adap...
by andreas
Sun Nov 15, 2015 11:53 pm
Forum: General R&D
Topic: Body Part Measurement Data to Inform Sizing Strategies
Replies: 0
Views: 741

Body Part Measurement Data to Inform Sizing Strategies

I just wanted to start a thread to collect information from various studies and internal surveys about actual size distributions in hopes that we can leverage the data to improve sizing strategies. The predominant current strategy involves linear scaling of all parts of the device from a native 100%...
by andreas
Tue Aug 25, 2015 6:37 am
Forum: Hand-o-matic
Topic: Parametric STL Generator in Fusion
Replies: 6
Views: 2653

Re: Parametric STL Generator in Fusion

James, That's a good idea. I've tried to be consistent in my models by using easy-to-follow parameter names such as "masterScale" and "clearance" and adding comments (see below), but I can put together a top-level doc (would be good for the github) that goes over things. And to a...
by andreas
Mon Aug 24, 2015 5:39 am
Forum: Hand-o-matic
Topic: Parametric STL Generator in Fusion
Replies: 6
Views: 2653

Re: Parametric STL Generator in Fusion

I finally had the time to sit down, re-model the Raptor Reloaded proximals (and distals) to be completely driven by a suite of parameters that are turn tied to a master scale factor. This allows the independent sizing of the macro-geometry from function-critical elements like the joints, which will ...
by andreas
Sun Aug 09, 2015 11:15 pm
Forum: Hands
Topic: New Print-in-Place Fingers: Three Phalanges, No Elastics
Replies: 11
Views: 3172

Re: New Print-in-Place Fingers: Three Phalanges, No Elastics

I'm using picture hanging cable, which is a little finer than 0.065 trimmer/weed whacker line, but carries a 50lb load rating. See below for some sourcing options: http://www.amazon.com/OOK-Invisible-Hanging-Supports-50-Pounds/dp/B000FSS39M/ref=sr_1_1?ie=UTF8&qid=1439161820&sr=8-1&keywor...
by andreas
Sun Aug 09, 2015 5:14 pm
Forum: Hands
Topic: New Print-in-Place Fingers: Three Phalanges, No Elastics
Replies: 11
Views: 3172

New Print-in-Place Fingers: Three Phalanges, No Elastics

I wanted to share some old work on print-in-place fingers that I was doing in March and April that I haven't had time to take the last 15% to something for beta testing, but I think I have good proof-of-concept here. Print-in-place fingers make a lot of sense because they eliminate a lot of assembly...
by andreas
Sun Jul 12, 2015 8:11 pm
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Re: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

Here are updated thermogauntlets with the proper tensioner slot positioning: V9 Raptor Reloaded Thermogauntlet, broad strap (classic): https://github.com/andreasbastian/e-nableRnD/raw/master/raptor%20reloaded/post-release%20dev/thermo%20gauntlet/RR%20thermo%20gauntlet.stl Screenshot 2015-07-12 13.06...
by andreas
Sat Jun 13, 2015 5:09 am
Forum: Hands
Topic: Announcing the E-Nable Eagle Hand, currently in alpha
Replies: 7
Views: 2948

Re: Announcing the E-Nable Eagle Hand, currently in alpha

Nice modeling! I was just curious if there were compatible files that I could take a look at in Fusion/Inventor. As long as we document all the interfaces of the joints as well as the overall dimensions (as with the Raptor Reloaded), we should be in good shape for people to build compatible pieces. ...
by andreas
Tue Jun 02, 2015 7:04 am
Forum: Hands
Topic: Announcing the E-Nable Eagle Hand, currently in alpha
Replies: 7
Views: 2948

Re: Announcing the E-Nable Eagle Hand, currently in alpha

Jason, amazing work! Huge fan of the improvements you've made. The dental elastics, metacarpal arch, gripper box, and new fingers are all big steps towards a more functional and more accessible design. What software are you designing this hand in? I think users will have to answer some of your quest...
by andreas
Mon Jun 01, 2015 4:51 pm
Forum: Hands
Topic: Raptor Tension Bars too Thin
Replies: 5
Views: 996

Re: Raptor Tension Bars too Thin

The fingers are cross-compatible, so you can either download and print the STLs or if you would like CAD source files, they are also available on the Thingiverse, under the "native CAD source files" heading at the bottom of the information page: http://www.thingiverse.com/thing:596966
by andreas
Mon Jun 01, 2015 5:30 am
Forum: Hands
Topic: Replacing the Velcro on the Gauntlet: Two Printable Solutions
Replies: 2
Views: 1022

Replacing the Velcro on the Gauntlet: Two Printable Solutions

Source files available here: PLA Thermoformed Gauntlet Ninjaflex Strap I think it's important to develop printable alternatives to the velcro used on many gauntlets today. The common "two strip" method is difficult to fasten with one hand and requires some glue or stitch-work to secure the...
by andreas
Mon Jun 01, 2015 1:57 am
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Re: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

Gregg, here are some more refined files than the ones I emailed you a couple days back. The regular Raptor Reloaded thermogauntlet now forms with less deformation to the dovetail. I also broke the "full wrap" thermogauntlet into two pieces, one of which consists of the regular thermogauntl...
by andreas
Mon Jun 01, 2015 1:42 am
Forum: Arms
Topic: Bloom Socket: First Prototype, Design and Usage Feedback Requested
Replies: 6
Views: 1820

Bloom Socket: First Prototype, Design and Usage Feedback Requested

Given that the vast majority of upper limb differences are transradial or transulnar, we know that there is a large population out there that isn't benefiting from our devices yet. The socket is a key foundation upon which to build out actuation systems and end effectors, so I took a crack at a sock...
by andreas
Sun May 31, 2015 11:22 pm
Forum: Hands
Topic: Deformed/damaged hand models
Replies: 4
Views: 1679

Re: Deformed/damaged hand models

Excellent initiative! Here is my contribution, a scan of a plaster cast captured using the Occipital sensor on an iPad . The cast is of the right arm of a 13 year old male recipient that I work with. When taken, we were using a 115% Raptor Reloaded. Screenshot 2015-05-31 11.59.22.png Does anybody ha...
by andreas
Sat May 23, 2015 6:15 am
Forum: Hands
Topic: Raptor Tension Bars too Thin
Replies: 5
Views: 996

Re: Raptor Tension Bars too Thin

Carl, No detail is too small when it might be causing a failure! To clarify, have you been printing Raptor Original fingers or Raptor Reloaded fingers? The Raptor fingers had trouble with the tie-bars snapping off, so the Raptor Reloaded fingers were designed with a more robust tie bar and we haven'...
by andreas
Thu May 21, 2015 8:44 pm
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Re: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

Hey Gregg, Here's the "full wrap" thermogauntlet . It should be scaled to the same size as the rest of Luke's hand. Note that it doesn't yet have a mechanism for latching the gauntlet closed and that you may have to trim the side with the slots (or the gauntlet may overlap on itself). I wi...
by andreas
Thu May 21, 2015 12:57 am
Forum: Hands
Topic: Raptor Reloaded - Current State
Replies: 4
Views: 1691

Re: Raptor Reloaded - Current State

Drew, Great work on this! It's really helpful to visualize all the different research projects currently underway on the Raptor Reloaded. Maybe we should make this a habit every month. It would be very helpful for tracking and sharing research progress, which is going to be more and more important. ...
by andreas
Wed May 06, 2015 6:36 am
Forum: Beta Testing
Topic: Palm Mesh
Replies: 14
Views: 4110

Re: Palm Mesh

I modeled a better bolt-on thermomesh palm to integrate with the Raptor Reloaded. It prints separately, should be scaled to the same value as the palm, and requires nine flathead screws for attachment. I have not tested it with my beta tester yet, so test carefully, but it geometrically recreates th...
by andreas
Mon May 04, 2015 10:39 pm
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Re: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

Doc, Nick, Drew, No 3D scanning is necessary for this process. The 3D printed forearm and residual palm is a scaled-down print of Peregrine's arm from the Digitizer scan that Peter Binkley shared on Thingiverse. In general, I'm not convinced that building workflows on 3D scanning makes sense just ye...
by andreas
Mon May 04, 2015 8:18 am
Forum: Beta Testing
Topic: Palm Mesh
Replies: 14
Views: 4110

Re: Palm Mesh

We should probably differentiate integrated thermomesh palms (Raptor Reloaded) and retrofit thermomesh palms (Raptor Original and Raptor Reloaded). I work with a recipient who has been testing an integrated thermomesh palm since February 18th and he's liked it so far, though we've made a couple of s...
by andreas
Mon May 04, 2015 8:01 am
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Re: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

Updates from 4/29/15 session with my beta testing recipient: ⋅ I've updated the wist hinge thickness so that the wrist pins don't stick out on the inside of the joint. ⋅ I've updated the "Full Wrap" thermogauntlet to provide better load distribution My recipient liked t...
by andreas
Mon May 04, 2015 3:53 am
Forum: Hand-o-matic
Topic: Parametric STL Generator in Fusion
Replies: 6
Views: 2653

Parametric STL Generator in Fusion

Hans Kellner, a friend of mine on the OCTO/Fusion teams here at Autodesk, put together this script after I explained the need for parametrically-generated files for Handomatic. Instead of generating STLs on the fly in the browser or on a server, Handomatic could just be a giant look-up table for cus...
by andreas
Fri Apr 10, 2015 8:02 pm
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Re: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

I met with my beta testing recipient on Monday 4-6-15 and we tested both thermogauntlets. I learned a lot form the process and am convinced that that velcro has got to go, at least on the bottom of the gauntlet. Watching how the velcro was being pressing into his skin with each flexion motion using ...
by andreas
Mon Mar 30, 2015 2:45 am
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Re: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

Update: the tensioner slot was not long enough for both the retention clip and the tensioner to lock in together. Fixed in V5, synced to github: https://github.com/andreasbastian/e-nab ... untlet.stl
by andreas
Sun Mar 29, 2015 11:18 pm
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Re: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

Drew, Just synced updated files to my github: https://github.com/andreasbastian/e-nableRnD/raw/master/raptor%20reloaded/post-release%20dev/thermo%20gauntlet/RR%20thermo%20gauntlet.stl I haven't had a chance to print out the updated version, but will share results as soon as I do. FYI, is this versio...
by andreas
Thu Mar 26, 2015 7:47 am
Forum: Hands
Topic: Design Goals and Processes
Replies: 8
Views: 1329

Design Goals and Processes

This stems from a great discussion about design approaches incited by Adam Arabian and I'm moving this out of email and onto a public thread so we can get more folks involved in this important conversation. To date, we have been designing devices for two users: the fabricator and the recipient. We'v...
by andreas
Mon Mar 23, 2015 6:42 am
Forum: Beta Testing
Topic: Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED
Replies: 39
Views: 12910

Thermoformed Raptor Reloaded Gauntlet: FEEDBACK/TESTING REQUESTED

Hey gang, I would appreciate any testing and feedback of this thermoformable Raptor/Reloaded gauntlet . I know I need to add recesses for the tensioner retention clip tabs, but otherwise the overall size, pin holes, and velcro slots all seem to be functional. I will be testing this and another versi...
by andreas
Tue Feb 24, 2015 5:50 am
Forum: Hands
Topic: Printed pulleys for reducing friction on the flexsors
Replies: 3
Views: 1324

Printed pulleys for reducing friction on the flexsors

While working on a Raptor Reloaded a couple months ago, I noticed that the friction on the flexsor lines was being evidenced by the wear marks on the cable routing channels on the palm. I think there are some not insignificant friction losses in these devices and wanted to propose printed pulleys as...
by andreas
Mon Feb 16, 2015 1:39 am
Forum: General Getting Started
Topic: How to easily share 3D files in the forums
Replies: 0
Views: 994

How to easily share 3D files in the forums

We set up the forums here to allow users to attach and embed inline images, but we aren't going to support attaching STLs, OBJs, or CAD filetypes. This decision was chiefly driven by the fact that this is a research and development forum and posted files are of designs-in-progress and will become ra...
by andreas
Sun Feb 15, 2015 12:14 am
Forum: General Getting Started
Topic: Code of Conduct
Replies: 1
Views: 1063

Code of Conduct

e-NABLE is a community fueled by mutual respect, support, and goodwill. Community culture is critical to preserving the quality and impact of our work, so please be respectful of others and their ideas, respect the spirit of sharing and openness the drives our community, offer solutions when providi...
by andreas
Sat Feb 14, 2015 7:12 am
Forum: General Getting Started
Topic: Hand Anatomy 101
Replies: 2
Views: 2392

Hand Anatomy 101

It's really helpful to have the specific and proper terms for the different parts of the hands when communicating design ideas about hands. See the diagram below for some basic anatomical names of the different bones and joints of the hand. http://www.iaeeperth2012.org/wp-content/uploads/2015/01/Hum...

Go to advanced search