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Min

Member Since 31 Mar 2010
Offline Last Active Jul 25 2015 06:03 PM
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#89454 Adding A Lid Element

Posted by Min on 23 July 2015 - 06:28 PM

I think that one bit of important info is missing when talking about the Olympic / Paragon kilns with a lid element that can go to ^10.  It is my understanding that the kilns with lid elements are dual media kilns, the lid element is used for low temp glass work but when firing above that it is not used. I'm thinking this is the optimal use for a lid element. It just doesn't make sense having a lid element for going to ^6, let alone ^10. There is a reason electric ceramic kilns don't come with lid elements.

 

From Olympic:

Quick Overview

DM2023HE 240 or 208 volt  Dual Media for firing ceramics and equipped with a lid element for fusing glass


Inside dimensions: 30" wide x 20" front-to-back x 24.5" deep, fires to cone 10/2350°F


Dual Media kilns are designed for the individual or business who works with multiple media.  The dual design for reaching high firing temperatures for stone ware, pottery, ceramics and the lid element for fusing glass provide the versatility needed. Oval dual media kilns are built with a 2" blank brick row in the first section of the kiln to protect the elements when loading and unloading the kiln.  All Dual Media models high fire to 2350°F and have a lid element to fuse glass.

 

From the Paragon site re one of their Janus kilns with lid element: 

 

The Paragon Janus-23 can fire both pottery and glass. Heating elements are mounted in the lid and sidewalls. Select between glass and pottery with the flip of a switch. With the switch in the glass position, heat comes from the top elements and the middle sidewall element. With the switch in the pottery position, heat comes from only the sidewall elements.

In the glass mode, fuse and sag large glass projects placed on a single shelf. In the pottery mode, fire to cone 10. You can also fire several shelves of smaller glass pieces using the pottery mode.




#89074 Overfired Gas Kiln Today

Posted by Min on 17 July 2015 - 02:40 PM

time to buy a lottery ticket

 

i'm glad it went so well  :)




#88655 Quality Of Work Sold?

Posted by Min on 10 July 2015 - 10:55 AM

This celebration of mediocrity that Mark, TJR, Pres and others have brought up is a trend that has been going on for decades within our society and has spilled over into the now grown children of our society. It is ingrained in many of us from an early age so trying to turn the cart around is going to take more than an honest critique, it is a societal issue. 

 

The Dunning-Kruger effect contrasts the self-perception of skilled and unskilled persons.  Their research looks at the metacognitive inability of the unskilled to recognize their ineptitude and contrasts this with the skilled. Of course what is “skilled” is open to debate but craftsmanship is my first thought. 

 

Citation

 

Database: PsycARTICLES

[ Journal Article ]

Unskilled and unaware of it: How difficulties in recognizing one's own incompetence lead to inflated self-assessments.

Kruger, Justin; Dunning, David

Journal of Personality and Social Psychology, Vol 77(6), Dec 1999, 1121-1134.

 

 

Abstract

People tend to hold overly favorable views of their abilities in many social and intellectual domains. The authors suggest that this overestimation occurs, in part, because people who are unskilled in these domains suffer a dual burden: Not only do these people reach erroneous conclusions and make unfortunate choices, but their incompetence robs them of the metacognitive ability to realize it. Across 4 studies, the authors found that participants scoring in the bottom quartile on tests of humor, grammar, and logic grossly overestimated their test performance and ability. Although their test scores put them in the 12th percentile, they estimated themselves to be in the 62nd. Several analyses linked this miscalibration to deficits in metacognitive skill, or the capacity to distinguish accuracy from error. Paradoxically, improving the skills of the participants, and thus increasing their metacognitive competence, helped them recognize the limitations of their abilities. (PsycINFO Database Record © 2012 APA, all rights reserved)




#87712 Cornish Stone Substitution

Posted by Min on 24 June 2015 - 08:35 AM

Dolomite.................... 0.37
Custer Feldspar............. 30.43
Wollastonite................ 3.30
Kaolin...................... 12.85
Silica...................... 29.29
Nepheline Syenite........... 23.75
=========
100.00

 

recipe from here: http://digitalfire.c..._stone_194.html




#87559 Pug Mills :)

Posted by Min on 20 June 2015 - 10:28 PM

It's more than just the time savings of recycling clay if that is the reason for buying one.

 

-they save a lot of wear and tear on the body than manually recycling the clay

-you tend to not think twice about wasting time trying to rescue a piece, into the pugger it goes if it's a little wonky

-blending clay bodies or adding grog / sand

-getting the clay to the consistency that you need it for specific forms

 

I kind off think of it as being similar to a car hoist, yes a mechanic can use car jacks but it is so much easier to use a hydraulic lift. It's a tool and I love tools that save time and effort. Yes, you can just toss the clay scraps but if you have years and years of clay work in front of you I can't see not having a pugger.

 

Is the one you are looking at stainless and with a vacuum? Is was hard to tell from the Bailey page.

(I've got the MSV25 Stainless with vacuum and love it. I have used it with a handle die that I just clamped onto the end, it makes a really good extruder too)




#87490 Glaze And Slip Casting

Posted by Min on 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/

 

RobertGordonAustralia_vases-600x800.jpg




#87469 Brand Identification

Posted by Min on 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.

 

http://thepotterscas...ntification.pdf

 

 




#87225 Feel Like I Am Hitting A Brick Wall - Perhaps You Have Experienced This?

Posted by Min on 15 June 2015 - 10:34 PM

I'm guessing you were working really hard getting everything ready for your sale this past weekend, then you had the work / stress of selling pots all weekend then you got to pack everything up and drive home and unpack it all. I'm also going to assume that there were other potters there who have had the benefit of more years of working in clay than your 4. Give yourself a hug, go have a cup of tea and a rest and I'm sure things will become easier. 

 

Rome wasn't built in a day. Keep making pots.

 

Min (mother of 4 daughters, been there, done that, bought the t-shirt and wore it out)




#86908 Zinc Oxide And Suspension.

Posted by Min on 10 June 2015 - 02:54 PM

if you use a lot its great for making pinholes in glazes too 




#86864 Qotw: How Important Is Membership To Ceramic Associations To You?

Posted by Min on 09 June 2015 - 05:36 PM

Not a group joiner. Tried the local "guild" and it was a waste. But I'd be highly suspicious of any group that would accept me as a member.

 

then we must all be under suspicion here  :)




#86848 How Does This Potter Produce This Effect?

Posted by Min on 09 June 2015 - 12:40 PM

https://www.youtube....h?v=NJOYTqST5b8

 

about 4:12 minutes in

 

(sorry couldn't figure out how to embed the video directly)




#86668 Can Anyone Suggest A Glaze To Match The One In This Photo?

Posted by Min on 07 June 2015 - 12:19 PM

Diesel Clay,

 

Thanks for the link.  I have been looking for something like the Alberta slip glaze for my red stone ware.  Going to give it a try.  Although it is kinda pricey.  The Alberta clay locally is $132 for 44 lbs.

 

This is kind of the reverse price mark up that we pay in Canada for American goods. I can get Alberta slip for $50 for a 20 kg bag.

To buy cobalt carb locally costs me $68- for 500 grams versus $25- lb from US Pigments. I buy as much of my raw materials in the States as I can as it's unusual for materials to be cheaper here.




#81734 It's Too Big..she Said

Posted by Min on 15 May 2015 - 11:34 PM

Customer comes into my tent and sees my lazy susan set. It was a lazy susan with a sign on it saying "Lazy Susan" so people knew it wasn't just a platter. She very loudly said "Well, how do you think that would make Susan feel?" She was super indignant and stomped away in a huff.

I've told this one before but it's still my favourite goofy customer comment.


#81704 Glaze Testing

Posted by Min on 15 May 2015 - 02:09 PM

Don't beat yourself up over this, you learned something and in the grand scheme of things thats what counts. There are a gazillion horrible glaze recipes out there, some will say they are not food safe but most won't. 

 

3 part article on barium here:

 

http://www.claytimes...es/barium1.html

 

http://www.claytimes...es/barium2.html

 

http://www.claytimes...es/barium3.html




#81486 Rolling Pins

Posted by Min on 13 May 2015 - 11:27 AM

Definitely a nice way to get flower in your flour...its a bloomin' nice roller, methinks ;)

 

Groan! Thank goodness I didn't post a picture of the giraffe one  :P