piedpotterhamelin@COMCAST.NET on wed 11 feb 04
Hi
I certainly would like to know where to get this Bartlett board and the
model number.
Thanks
Rick
--
"Many a wiser men than I hath
gone to pot." 1649
> Yarrgh!! Computers - love'em/ hate'em!
>
> I just wrote to you what I was doing, and offered a solution for you, --
> all quite lengthy -- and the made a spastic poke at a wrong key and
> succeeded in disappearing the entire thing.!!!
>
> There are a number of industrial valves that use calibrated orifices,
> and this is where you want to go. Some are operated by raising a cone
> valve up and down over an opening in the valve, and a solenoid is used
> to control the opening and closing. Others use a lever on the valve
> which is driven by a control device like a pneumatic controller, which
> is a bellows like device that expands and contracts moving the valve
> arm, and another type is a valve with a circular gear on the end of the
> shaft, coupled to a worm drive mounted on the shaft of a controllable
> motor like a stepping motor which comes from a CAD controlled machinest
> lathe. CNC as it were.
>
> Just a few suggestions as to where to investigate.
>
> I have been working on a homebuilt controller, but haven't made much
> progress. My approach is to write a program to run on my desktop PC.
> Connect the PC via a parallel cable to the little controll box I
> propose to build, and let it regulate the power to the kiln. I'm sure
> this will work.
>
> Any sharing or info, or any input you may have on my project would be
> appreciated.
>
> I hope eventually to release my parts and materials list, schematics,
> and my program (or at least the code) to Clayart for those who like to
> do the homebuilts thing.
>
> Regards,
>
> John Rodgers
> Chelsea, AL
> ian wrote:
>
> >I built an electronically controller for my electric kiln using a
commercially
> available Bartlett circuit board. I have now proven to myself that the
rate at
> which the kiln is cooled changes the appearance of the glaze more than
altering
> the ingredients. One glaze - which yielded a glossy, brown surface when
cooled
> quickly - produced a satiny, gray surface with brick-red speckles when
cooled
> slowly!
> >
> >I now wish to apply the same principle to the gas kiln available to me.
This
> kiln is small, and, thus, cools quickly. If I could regulate the gas
supply with
> a electrically-activated valve, I could adapt my breadboarded controller
to the
> gas kiln. Simply turning down the gas incrementally does not yield the
same
> result. When the gas is turned down, the temperature initially falls
quickly,
> then approaches a plateau assymptotically. Turning down the gas at
intervals
> produces a very uneven cooling curve.
> >
> >Does anyone have any experience with this?
> >
>
>___________________________________________________________________________
___
> >Send postings to clayart@lsv.ceramics.org
> >
> >You may look at the archives for the list or change your subscription
> >settings from http://www.ceramics.org/clayart/
> >
> >Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
> >
> >
> >
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
Ralph Naylor on thu 12 feb 04
Rick, you can find info on all their products here -
http://www.bartinst.com/
Regards,
Ralph in NH
On Wed, 11 Feb 2004 23:21:38 +0000,
piedpotterhamelin@COMCAST.NET wrote:
>Hi
>I certainly would like to know where to get this Bartlett board and the
model number.
>Thanks
>Rick
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