Re: [Clayart] installing mol duct into plaster mold

[John Rodgers]

Blocking the end of the tube sounds reasonable. However, someone working
with hydraulic ceramic presses should be able to answer your question.
Your supplier should know. Jonathon Kaplan might be one source of info.
I think he still follows the Clayart list. Also look up RAMPress on the
internet. They build such machines and make molds. contact them.

John


On 3/1/2014 2:28 PM, Kathleen Morrell wrote:
> I am making a mold that requires compressed air release. I have the molduct and regular plastic tubing and did one prototype that didn't work so well.
>
> I have a probably really dumb question. Do you close of one end of the molduct so that the pressurized air has to be forced out inside the plaster?
>
> I have scoured the internet looking for detailed instructions on how to install molduct into a plaster mold...but haven't gotten the detail I need. In the Ceramics Arts Daily article about molds for double walled vessels, it shows photos of the molduct being laid in the mold but doesn't show the end and doesn't mention if you close off one end.
>
> Does anyone out there use molduct and compressed air to release trapped molds?
>
> Thanks.
>
> Kat Morrell
> 425.827.6230 home
> 425.753.5735 cell
> www.katmorrell.com
> www.flamingchalice.com
> www.facebook.com/FlamingChaliceDesignsUU
> www.etsy.com/shop/flamingchalice
>
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[Des & Jan Howard]

Buy a copy of "Pressing Ceramics with Air Release", by
Reid Harvey. Covers thing very well in a small booklet.
Available at large ceramic material supplier, whose
name evades me.
Des

> On 3/1/2014 2:28 PM, Kathleen Morrell wrote:
>> I am making a mold that requires compressed air
>> release. I have the molduct and regular plastic
>> tubing and did one prototype that didn't work so well.
>>
>> I have a probably really dumb question. Do you close
>> of one end of the molduct so that the pressurized air
>> has to be forced out inside the plaster?
>>
>> I have scoured the internet looking for detailed
>> instructions on how to install molduct into a plaster
>> mold...but haven't gotten the detail I need. In the
>> Ceramics Arts Daily article about molds for double
>> walled vessels, it shows photos of the molduct being
>> laid in the mold but doesn't show the end and doesn't
>> mention if you close off one end.
>>
>> Does anyone out there use molduct and compressed air
>> to release trapped molds?

--
Des & Jan Howard
Lue Pottery
Lue NSW
Australia
2850

02 6373 6419
www.luepottery.hwy.com.au
-32.656072 149.840624

[Des & Jan Howard]

That's the mob, thank Peter.
Very handy booklet, I built a small press from it.
Des

On 3/03/2014 12:22 AM, PETER HAMER wrote:
> Looks like Axner
> http://www.axner.com/pressing-ceramics-with-air-release.aspx