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

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.

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

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

@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?

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

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…

@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.

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?

There is the OpenHardware InkShield for the arduino:
They sell kits and there are DIY powder based 3d printer in the wild, too.
Their Kickstarter: