Re: Why so much

Thanks to both of you, Sandy and Vaughn, I guess I should have figure that
out by myself.

Yves

----- Original Message -----
From: "Sandy King" <sanking@clemson.edu>
To: <carbon@spitbite.org>
Sent: Thursday, December 01, 2005 12:14 PM
Subject: Re: [carbon] Why so much

> There is no fixed amount of gelatin needed to make carbon tissue, but
> practical considerations suggest that the range is from a low of
> about a 5-6% solution to a high of 15-20%. That is, from as little as
> 50 grams of gelatin per liter of pigmented gelatin solution to as
> high as 200 grms. Considerable complications are introduced at both
> ends of the range. The amount used also depends on the setting
> characteristics of the gelatin being used, its Bloom, and the degree
> of relief desired.
>
> I personally use about a 12% solution of 175 Bloom porcine skin
> gelatin, with characteristics very similar to the Knox that Vaughn
> uses.
>
>
>
> Sandy
>
>
>
>
> >Hello Yves,
> >
> >I have joked to the students about my "Jello" Prints (Jello is a brand
name
> >of a gelatin dessert here in the USA). Perhaps trying to make a print
with
> >an envelope to 500ml would create a mess only worth eating.
> >
> >I use the amount I do because someone at sometime used that amount, it
> >worked, and I have blindly followed their instructions -- 12 packets, or
> >about 85 grams, for a 750 ml batch of solution. Never tried less, never
> >tried more...sort of a "It works so don't break it" type of thing.
> >
> >My assumption has been that about 150 years ago someone tried different
> >amounts and found that this amount works. Might be fun to double the
amount
> >and see what happens, but I'd rather spend the time making beautiful
> >objects...and my latest prints...yummy!
> >
> >But perhaps someone here actually knows the answer, besides my rather
silly
> >assumptions/explanation.
> >
> >Vaughn
> >
> >> I've been reading the archive a bit and I was surprise by the amount
of
> >> gelatine some of you used. On a pouches of Knox it's written "This
> >envelope is
> >> pre-mesured to set 2 cups (500ml) of liquid." I ask myself why do they
use
> >so
> >> much ( ~6-7 times+)??? And I decided to ask instead of trying to
figure it
> >> out.
> >>
> >> Thanks
> >> Yves
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Received on Thu Dec 1 09:51:25 2005