Lily Krakowski on tue 23 sep 03
Help, please.
Question One:
I need to make about 100 tiny brick. I want them to be about 2 inches long
and proportioned like proper brick, which means about one half inch thick.
I plan to make 16 bricks , and then make a plaster mold which would yield
16 brick. Question: Am I better off pressmolding slab or can I buy some
casting slip and do it that way?
This by the way is a fun project, and I will tell all of you about it,
when/if it works out.
Question Two:
GROG: I have used fine grog in throwing clay, though I now use white silica
sand.
For my brick project’s other parts I was thinking of using a coarser grog.
Then it dawned on me that I know nothing about grog size. I do know what
grog does—but when/why/how does one opt for coarser grog or finer? For
instance: For a sculpture or outdoor pot—beyond looks—is there a
functional difference?
Many thanks
Lili Krakowski
Constableville, N.Y.
Be of good courage....
wayneinkeywest on tue 23 sep 03
Lili:
You can do it either way, but it means creating the mold(s) ,as you know.
It will be easier
on you to slipcast _if_ the bricks will be detailled (textured) like real
brick.
You would need to make either one mold, and wait a day or so for the slip to
set up
assuming you want hollow bricks, or perhaps a week if you intend to pour
"solid".
If you need to do them all at once, you would need to make 7 molds.
Do I want to know why you don't just roll out a slab and cut them that way?
Hope that helps,
Wayne in Key West
> Help, please.
>
> Question One:
>
> I need to make about 100 tiny brick. I want them to be about 2 inches
long
> and proportioned like proper brick, which means about one half inch
thick.
>
> I plan to make 16 bricks , and then make a plaster mold which would
yield
> 16 brick. Question: Am I better off pressmolding slab or can I buy some
> casting slip and do it that way?
pdp1@EARTHLINK.NET on tue 23 sep 03
Hi Lily,
Why not make these 'miniature' Bricks the way actual
full-size Bricks are made?
In a Wooden ( or other) trough as has the cavity (or
cavities) in it...one presses the Clay mixture in to it (or
them) and screeds off the hight spots or excess...
Let them dry some, turn the mold over and release them to
dry further, and be about making more...
Good luck..!
Phil
Las Vegas
----- Original Message -----
From: "Lily Krakowski"
To:
Sent: Tuesday, September 23, 2003 9:56 AM
Subject: Press mold? Slip-cast? Also grog size
> Help, please.
>
> Question One:
>
> I need to make about 100 tiny brick. I want them to be
about 2 inches long
> and proportioned like proper brick, which means about one
half inch thick.
>
> I plan to make 16 bricks , and then make a plaster mold
which would yield
> 16 brick. Question: Am I better off pressmolding slab or
can I buy some
> casting slip and do it that way?
>
> This by the way is a fun project, and I will tell all of
you about it,
> when/if it works out.
>
> Question Two:
>
> GROG: I have used fine grog in throwing clay, though I
now use white silica
> sand.
>
> For my brick project's other parts I was thinking of using
a coarser grog.
> Then it dawned on me that I know nothing about grog size.
I do know what
> grog does-but when/why/how does one opt for coarser grog
or finer? For
> instance: For a sculpture or outdoor pot-beyond looks-is
there a
> functional difference?
>
> Many thanks
>
> Lili Krakowski
> Constableville, N.Y.
>
> Be of good courage....
>
>
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Kenneth D. Westfall on tue 23 sep 03
Well you mite want to think about extruding them and then cutting to size
with a gang wire cutter. I made a die to extrude then out of my pug mill
and then cut them to length with a frame that had multiple wires set on
nails to cut ten at a time. Much fast then press molding or slip
casting. Patted them in fine white sand to keep them from sticking and set
them out to dry. Used them for kiln building demos and examples for
different kilns. Probably turned out 6 or 8 hundred in a few hours.
Kenneth D. Westfall
Pine Hill Pottery
R.D. #2 Box 6AA
Harrisville, WV 26362
kenneth@pinehillpottery.com
http://www.pinehillpottery.com
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