This is not really about the OP's request of generating 3D models, but an alternate approach to rigid 3D modles might be to use flexible materials to more easily conform to the head...
Any reports for Cognionics on what they are up to? Their website has been badly hacked by spammers several times I've tried it. But I had gone there in the past and saw the fascinating headset they were working on utilizing "flexible plastic prong" dry sensor contacts. I believe that Cognionics was mentioned as being part of the same DARPA grant that OpenBCI is involved with.
Whoa, Cognionics site got hacked? Totally uncool. Why them? I hate that kinda thing.
<blockquote> I believe that Cognionics was mentioned as being part of the same DARPA grant that OpenBCI is involved with.</blockquote>
Yes, they were/are part of the same DARPA seed money program. At Maker Faire NYC, DARPA did an on-stage demo using their headset. The flexible conductive prongs were indeed pretty neat. And, once they overcame the inevitable on-stage bluetooth problems, it seemed to work pretty nicely, too. Seems like a cool product.
But, as far as I know (and I don't know much), it's a closed-source product. I also don't know about any plans/schedule for making the product publicly available or what the price will be. Hopefully they get their site up and running soon...I'm definitely interested to see what happens with that technology over the near term.
I see that you have a complete design of the headset now.
If you wish, I have a 3D printer, I can print it and send you back pictures.
(as long as it does not require support material)
I'm with shachardas!
Would love to start printing these out.
What file format(s) will be available?
I'm not afraid to start designing from scratch, but I'd love to see what files are already out there before digging into it.
In OpenSCAD this seems as simple as scaling and cutting up a sphere. Would love to try my hand at it.
I'm also wondering about another aspect of the Cognionics headset: although the left/right bands are flexible in terms of bending to conform to the head shape -- I'm not sure that they actually STRETCH to conform to something like a standard 10-20 system. (Which the g.tec Sahara does by virtue of it's multisized spandex material caps.)
It could be that the 64 channel Cognionics headset has so many sensors, they they are not that concerned about exact conformal placement.
But the complexity of their headset with all the internal mechanics, would seem to place it far beyond the cost of something like the g.tec. Not to mention ease of donning the headset by a single person.
Not sure how much the Cognionics system costs but a typical g.tec setup is well into the five figures. It seems like these research systems are all paid for by grant funds - and if you have to ask you probably can't afford it. But it seems like the electronics for EEG isn't all that expensive. Personally, I'm pretty excited to get my hands on these boards - especially daisy chaining multiple chips :-)
To my eye, I do think that it looks feasible to put this on yourself...maybe not easy, but it does look do-able. This looks especially feasible if you compare to a traditional electro-cap style EEG cap where you have to inject the conductive gel into each electrode cup. I've tried putting those on myself. Wow, difficult. And messy.
I hope that they make them for sale and I hope that they have a low-end model at a price that non professionals can afford!
I believe there will be much more posted on the printable headset in the Downloads and Learning sections of the website, as they are populated. This particular forum thread was also looking at some other designs such as the Cognionics and g.tec dry sensor systems -- which are quite expensive. Hopefully there will be a range of options, from custom hardware to even DIY at home systems made from velcro bands.
Comments
Material/Output options:
- Makerbot (flexible filament) - http://store.makerbot.com/flexible-filament.html
- Laser sintering - http://www.solidconcepts.com/technologies/direct-metal-laser-sintering-dmls/?gclid=COSCzo6j6roCFVRnOgodZmkA6g
- 3D printable
1. Real world problems
a. Mobility
b. Wearability
c. Intuitiveness
2. Systems benchmarking & comparative market analysis
3. Defining product
a. New technologies & methods
b. Use case studies
c. User persona
d. Price
<a href="http://www.cognionics.com/index.php/products/64-channel-system">http://www.cognionics.com/index.php/products/64-channel-system</a>;
Chip
Here is a link to a conference paper on the silver nano particle ink jet printing.
<a href="http://research.microsoft.com/pubs/201273/ubi1415-instant inkjet.pdf" target="_blank">http://research.microsoft.com/pubs/201273/ubi1415-instant inkjet.pdf</a>
This seems amazing.
http://www.composimold.com/
or this:
http://en.wikipedia.org/wiki/Polydimethylsiloxane
or this:
Chip</blockquote>
Any reports for Cognionics on what they are up to? Their website has been badly hacked by spammers several times I've tried it. But I had gone there in the past and saw the fascinating headset they were working on utilizing "flexible plastic prong" dry sensor contacts. I believe that Cognionics was mentioned as being part of the same DARPA grant that OpenBCI is involved with.
Here is a <a href="https://web.archive.org/web/20130523143523/http://www.cognionics.com/">Wayback Machine</a> version of their site, when it was still working.
<blockquote> I believe that Cognionics was mentioned as being part of the same DARPA grant that OpenBCI is involved with.</blockquote>
Yes, they were/are part of the same DARPA seed money program. At Maker Faire NYC, DARPA did an on-stage demo using their headset. The flexible conductive prongs were indeed pretty neat. And, once they overcame the inevitable on-stage bluetooth problems, it seemed to work pretty nicely, too. Seems like a cool product.
But, as far as I know (and I don't know much), it's a closed-source product. I also don't know about any plans/schedule for making the product publicly available or what the price will be. Hopefully they get their site up and running soon...I'm definitely interested to see what happens with that technology over the near term.
Chip
If you wish, I have a 3D printer, I can print it and send you back pictures.
(as long as it does not require support material)
Would love to start printing these out.
What file format(s) will be available?
I'm not afraid to start designing from scratch, but I'd love to see what files are already out there before digging into it.
In OpenSCAD this seems as simple as scaling and cutting up a sphere. Would love to try my hand at it.
Wonder what the cost is? Their dry sensors I think require active, per sensor electronics (at the snap connector). Guger g.tec has similar active snaps in their <a href="http://www.gtec.at/Products/Electrodes-and-Sensors/g.SAHARA-Specs-Features">Sahara system</a>.
I also wonder if you could ever put this on yourself without assistance. Perhaps with the aid of a mirror. Here is their page referencing the Youtube,
http://www.cognionics.com/index.php/products/64-channel-system
It could be that the 64 channel Cognionics headset has so many sensors, they they are not that concerned about exact conformal placement.
But the complexity of their headset with all the internal mechanics, would seem to place it far beyond the cost of something like the g.tec. Not to mention ease of donning the headset by a single person.
I hope that they make them for sale and I hope that they have a low-end model at a price that non professionals can afford!
Chip