Has anyone made an extruder that could use,   http://www.adafruit.com/products/1305 ,

3D Printing
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1

Has anyone made an extruder that could use, http://www.adafruit.com/products/1305 , conductive ink to print with?
We can make paper/cardboard/cloth pcb’s.
Maybe a foam-tipped syringe type.

2

There’s condictive ABS that any ABS printer can use…

3

You could do something like this http://www.youtube.com/watch?v=DLH0S604zbQ but with a marker filled with the ink,

4

@matthew_bennett , as far as I know, the conductive ABS that you can buy is not conductive enough to print circuits. For example, the stuff on amazon ( http://www.amazon.com/Printer-1-75mm-Conductive-Filament-2-2lbs/dp/B00AF2L0W0 ) says specifically, “It CANNOT be used to conduct electricity between electronic components, although it has “Conductive” in its name.”

Is the conductive ABS that you know of different than that?

5

I’ve been hearing about “carbomorph” for months now but have never seen any. I’m beginning to think it doesn’t exist.

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Richrap has a ‘paste’ extruder that uses a syringe that could probably be adapted to print with this ink. I have yet to poney up the cash to buy that ink to play with it so…

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@Lee_Lemay I’m not sure. I have a roll of 3mm “conductive” ABS, but I have a PLA extruder that would melt at ABS temps. I bought mine at the same time tge carbomorph videos hit youtube.

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How bad can the conductive filament be? With the Think Geek Play-Doh 3D printer you can probably make some functional PCBs, at least until the Play-Doh dries out. Here’s my proof of concept - http://youtu.be/FQzedqWG36A All joking aside, what kind of Ohms/inch do you see with the conductive filament and at what extrusion widths?

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There is the OpenHardware InkShield for the arduino:
http://nicholasclewis.com/projects/inkshield/
They sell kits and there are DIY powder based 3d printer in the wild, too.
Their Kickstarter:
http://www.kickstarter.com/projects/1908026860/inkshield-an-open-source-inkjet-shield-for-arduino
Thingiverse: