Re: Direct carbon
On Thu, 24 May 2007, Marek Matusz wrote:
Thanks Art and Judy who replied to my note. Should the sawdust particles
be of certain size or is it good as is. Judy mentioned something about
sieving it. Is the sawdust particle size related to the graininess of the
The sawdust I got at the neighborhood lumber yard was full of all sorts of
squiggles, splinters and shards. I wouldn't have sloshed it onto a print
in that condition, it would almost certainly have left scratches....
I used two sizes of sieve because I had them, didn't do any comparison
tests. And didn't use sawdust so very much, tho I liked it, always planned
to do more, but got preoccupied elsewhere. Odds are that particle size
per se isn't critical... In a slurry all particles may be more or less
equal, but sieving gets out hidden chips. cigarette butts, nails,
whatever. There are usually surprises in the strainer.
Subject: Re: Direct carbon
Date: Thu, 24 May 2007 13:38:09 -0500
I would think so . . . I would be cautious to be certain
you've obtained it before its caustic or acid treatment
On Wed, 23 May 2007 20:13:55 -0400 (EDT), Ender100 wrote
> Art, would a slurry of paper pulp work?
> In a message dated 5/23/07 6:16:02 PM,
> I wood stay clear of pine as it is very acidic.
> I use poplar wood sawdust. Mix it with water and after a
few minutes the sawdust hydrates and you are good to go.
You want enough sawdust in the slurry so that it pours like a
> Best Wishes,
> Mark Nelson
> Precision Digital Negatives - The System
> PDNPrint Forum at Yahoo Groups
> See what's free at http://www.aol.com.
WOW! Homepage (http://www.wowway.com)
PC Magazine’s 2007 editors’ choice for best Web mail—award-winning
Windows Live Hotmail.