Alisa og Claus Clausen on wed 4 apr 01
Dear Sandy,
I just came across your question and have not read all the responses, so =
please excuse if this has been said, or better, take it as a =
reinforcement for hopefully decent advice!
I would recommend preheating your kiln, say a ramp schedule like
150f for 2 hours
150f per hour up to 250f for one hour
150f per hour up to 300f=20
150f per hour up to 400f
(These temps. are set over from celcius, so they are not exactly my =
ramp, but very close)
Hold up to 10 hours, the longer the more sure.
Depending on how wet your work is,=20
for example when I need to bisque and some of the work is even less than =
leather, I use this ramp with an overnight hold, about 12 hours.
Otherwise, I hold for 10 hours, because even when pieces appear bone =
dry, they can be decieving. My climate is wet anyway, so I need to do =
this.=20
The one time I did not preheat, it was because I had a few large pots to =
bisque that had been in the studio over two months, during several =
firings, to dry out. They absolutely looked and tongue checked dry. =
When I opened the kiln, the pots fell out in sheaves on my boots!
No need to bisque different porportions separtely. The smaller pots =
will not overdry, if there is such a condition. The thicker and bigger =
the pots, the more slow drying they need.
Hope your firing is an (un)smashing success!
Best regards,
Alisa in Denmark
Alisa Clausen
Varn=E6svej 171, DK6200 Aabenraa
Danmark
t. 45 7461 3641
Aliskin@mail.dk
Alisa's Pot Shop
Skolevej 3, DK6200, Aabenraa
Danmark
t. 20246640
Potshop@mail.dk
----- Original Message -----=20
From: Saralyn Lindsey
To:
Sent: Wednesday, April 04, 2001 1:54 PM
Subject: Kiln Question
> After just reading the list for quite awhile, I am now
> rejoining hopefully better informed than before. In
> the past year I have set up my own pottery workshop
> for myself in my basement, adjusting the perimeter
> again and again. I now have a Bailey wheel, that I
> love, an extruder that I worship, and have now
> included a Scutt 1227 kiln. I bought the kiln used and
> after having an electrican come in for the
> installation of the kiln and the envirovent,I am ready
> to begin, I hope! My first question is if I am really
> ready to begin? My kiln is in a corner of the
> basement, about 20inches from each wall, and the walls
> are cement along with a cement floor. Is there any
> other protection that I should consider?
>=20
> When I start to do my first firing, after firing with
> the kiln empty, I have some thick, about 3/4 inch,
> coiled planters, about 2ft high, that I want to bisque
> fire along with some bowls, etc, that are much
> thinner. Do I need to bisque them at different times,
> temps, or can they all go in together? I have the
> programable firing system, so can set it to anything,
> right?
>=20
> Any help to begin this exciting new venture would be
> greatly appreciated as I look forward to this
> adventure! Thanks in advance, Sandy Lindsey from
> Mystic, CT where hopefully it will soon start to feel
> like Spring!
>=20
> __________________________________________________
> Do You Yahoo!?
> Get email at your own domain with Yahoo! Mail.
> http://personal.mail.yahoo.com/
>=20
> =
_________________________________________________________________________=
_____
> Send postings to clayart@lsv.ceramics.org
>=20
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>=20
> Moderator of the list is Mel Jacobson who may be reached at =
melpots@pclink.com.
>=20
| |
|
