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Modifying a Playstation Controller for Muscular Dystrophy, Part 1: The Dissection
8/29/2013

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The trigger buttons with the frame removed.
The trigger buttons with the frame removed.

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dangerbock
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idea....i hope :)
dangerbock   8/29/2013 1:23:20 PM
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i think that way will be dificult to reach the buttons
would be great to have them near the cursor and on the other side near triangle, etc..

take a look at this image:

http://www.flickr.com/photos/dangerbock/9624347634/

i never open my controllers so i don't know if is possible to put a pressure button there


dangerbock
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Re: idea....i hope :)
dangerbock   8/29/2013 1:26:10 PM
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Another idea is to use force sensing resistors insted of the force sensetive buttons.
that way he would not neet much force

example:
http://www.inmotion.pt/store/.5-%281.27cm%29-force-sensing-resistor

Caleb Kraft
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Re: idea....i hope :)
Caleb Kraft   8/29/2013 5:07:05 PM
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That would be a much better layout I think. I'm a bit concernd about attempting to extend this flexible material though. I'm not sure how well I could connect to it, or how long those connections would last.

Caleb Kraft
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Re: idea....i hope :)
Caleb Kraft   8/29/2013 5:07:54 PM
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I've got one of those here to play with. I should compare the outputs to see how similar they are. That might be my best solution.

rick merritt
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Re: idea....i hope :)
rick merritt   8/29/2013 7:47:28 PM
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Nice work, Caleb. Can't imagine where you find that "free time" stuff to be able to do this, but glad you can!

Colecago
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Good Luck
Colecago   8/29/2013 11:14:17 PM
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I hope you fare better than I did.  I tried to help on a PS3 controller modification (tying into the lines) and because all of the buttons are analog and connected to a flex circuit which is just pressed onto the board (no connector) it was absolutely miserable.  We tried soldering to the pads on the board, then it made a finicky connection instead, I tried attaching a wire to the flex circuit thinking that it was copper like similar circuits, and the ink came off, it was just terrible.

My suggestion, get a PS3 compatible USB controller and hack that, all digital, you can move switches around, hopefully no nasty sony flex board in it, etc.

Susan Rambo
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Good luck
Susan Rambo   8/30/2013 1:20:23 AM
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Good luck to you Caleb. I hope the EET readers can help you find some solutions. It's for a good cause and it's an interesting problem.

dangerbock
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Re: idea....i hope :)
dangerbock   8/30/2013 4:34:03 AM
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you also can go another way that is the mechanical solution:

Make some king of laverage to bring the buttons to the top of the controller that way is necessary less force and you make them more acessible

Caleb Kraft
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Re: Good Luck
Caleb Kraft   8/30/2013 10:17:56 AM
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that is the exact reason I'm considering the imperfect placement. It requires no electrical modification, only mechanical.

Caleb Kraft
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Re: idea....i hope :)
Caleb Kraft   8/30/2013 10:18:34 AM
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well it took me almost a month to get the 6 screws out and take a few pictures. We'll see how quickly I can get it done.

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