Re: [CAD_CAM_EDM_DRO] Conductive ABS -- 3D Printing

You might want to think about producing your own filament with the mix you
want. I don't recall the name but there is a kickstarter project for one
in process now. I think it also appears on thingiverse.

Gary

On Thu, Jul 12, 2012 at 10:14 AM, Craig Carmichael <craig@...> wrote:

> **
>
>
> 3D Printing is called "additive machining", where material is being
> added to the workpiece rather than removed.
>
> I've ordered a Reprap Huxley complete kit from reprappro.com . It or
> the Reprap Mendel kit is under 1000$. Also I've seen "Ultimaker" and
> "solid doodle" "solidoodle"(?) which might be worth checking out.
> Evidently all stem from the original 2007 Reprap which the inventor
> made open source and put everything on line at www.reprap.org.
>
> Now...
>
> Has anyone used conductive ABS filament (w. carbon fiber)?
> Has anyone seen a source to buy it on line?
>
> I think conductive ABS battery electrode pockets with tiny pores on
> the face(s) - sort of microporous or a bit bigger - to let the
> electrolyte through but keep the compacted chemical powder enclosed
> should make for an absolute revolution in homemade alkaline
> batteries. I might even say make them 'possible', or at least
> 'practical'.
>
> (I already have an improved chemistry that works - "MnMn" -
> permanganate-manganese in 'moderately alkaline' electrolyte, about
> 2.2 volts. Dirt cheap stuff with the energy density of lithium ion.
> See in recent issues of Turquoise Energy News:
> http://www.saers.com/recorder/craig/TurquoiseEnergyNews/
> That doesn't mean I've been able to make decent batteries, but I've
> tried out the ABS pockets idea at a local prototyping facility, and
> I'm very much looking forward to the arrival of the printer.)
>
> Carbon fiber should be great for the positive electrodes. For the Mn
> negative electrodes, ABS made conductive with zinc powder would be
> ideal. So far I've been using strips of zinc (cut from dry cells) or
> zinc plated pieces.
>
> Coarseness of part resolution for the pockets isn't much of an issue,
> tho it is for the case and one-way valve (no leaks - keep air out). I
> plan to dip the valves briefly in methylene chloride to flow the
> plastic a bit, to smooth them and make sure they don't leak. At
> least, that's my present plan.
>
> Cheers,
> Craig
>
>



--
----------------------------------------------
Gary A. Crowell Sr., P.E., CID+
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