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Member Since 31 Mar 2010
Offline Last Active Yesterday, 10:20 AM

Topics I've Started


13 August 2015 - 09:18 PM

Okay, I feel like a bit of a git asking this but I'll ask anyways,


If someone adds me as a friend how come I can't "friend" them back?


When I look at a members profile page if it's someone who hasn't "friended" me then I have the option of adding as a friend or pm-ing or viewing content, if it is someone who has "friended" me then the only options are "remove as a friend", then the same latter 2 options as above.  So, I'm wondering if being a friend is just a one-way street  or what am I missing?


Apologies if this is in the wrong section, wasn't sure where to post.



Glaze And Slip Casting

19 June 2015 - 09:23 PM

I came across a technique I haven't seen before where glaze is poured and swirled around inside a mould then slip is poured in after it. Anybody know anything more about this or is doing this? 


It's from this site: http://thedesignfile...-serene-series/



Brand Identification

19 June 2015 - 03:32 PM

This is an offshoot from GEP's potterscast interview. 


Fairly simple and short pdf on branding from Paul Blais of The Potters Business Workshop.





New Elements

19 May 2015 - 09:24 PM

I was doing some reading on Kanthal and came across the blurb below. After replacing elements I have always run the kiln empty up to around ^04 then shut it off but am wondering how significantly element life is improved if held for the 7 to 10 hours as recommended by Kanthal. Does anybody do this and have you found an increase in element life?


From the Kanthal Handbook, referring to their FeCrAl alloys (i.e. A-1 alloy):


"The durability of resistance alloys in air at high temperatures is greatly increased by an oxide surface layer formed by a reaction with the oxygen of the air. The protective nature of this oxide layer is proportional to its area and depth. Foreign matter usually interferes with the formation of the oxide layer, and this causes a reduced life. ... At high temperatures the protective layer of Kanthal materials consists almost entirely of aluminum oxide. This has a light grey colour and good chemical resistance. At temperatures below 1000oC (1832oF) the oxide layer has a dark colour since the aluminum oxide is impure."

In order to protect elements from the effects of harsh environments, it is very desirable to condition the elements, by pre-oxidizing them. This is accomplished by firing them to a temperature of 1050oC/1922oF and soaking for several hors, 7-10 if possible. The process is enhanced by allowing good air flow into the kiln - leave the peepholes open, or the KilnVent on. If you are doing reduction firings in an electric kiln it is desirable to periodically re-oxidize the elements, for best life expectancy. The results of element conditioning can be quite dramatic. It may not have much affect for normal, low temperature firings, but can be significant for harsh operating conditions."





Rolling Pins

12 May 2015 - 02:40 PM

Came across this site on Etsy for laser carved rolling pins. The larger ones are approx 2 1/2" diameter X 10" rolling surface. Nice to see some alternatives to the ones at potters supply stores. (there are 3 pages of designs, sets of small rollers plus the larger ones)