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Min

Member Since 31 Mar 2010
Offline Last Active Today, 10:45 AM
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#91564 What Do You Use To Grind Glaze Off Of Your Pots

Posted by Min on 27 August 2015 - 09:06 PM

diamond flat lap disc stuck to the wheelhead with a pancake of clay. needs to be kept wet while grinding so I dribble water onto it with a sponge. mine is a few years old so I'm not positive but I think it's about a 120 grit

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#91324 Lichen Glaze "peels" Off When Applied

Posted by Min on 24 August 2015 - 09:20 AM

I'm not so sure putting a crawl over a slip glaze is going to fire okay. I've played around with crawls a bit and when I used them over underglazes some colours had enough flux in them to cause the crawls to turn to blobs.

 

I've tried them over velvets, spectrum and a few of Seattle Pottery Supply ugs, most colours worked, but if the ug looks shiny when fired (cone 6) then the tests with crawls overtop tended to be less crawl and more icky blob look. I think that if you use a slip glaze the crawl is going to melt into the glaze and be more along the blob lines than a crawl.

 

Since the crawl glazes like to peel off the pot even without raw glaze underneath I can see it would be a problem getting it on thick enough without peeling/shelling off with a raw slip glaze underneath.

 

Ikebana with spectrum tan ug (on greenware then bisqued), under sprayed crawl. (let me know if you want my ^6 crawl glaze recipe and I'll dig it out)

 

edit: Hopper is using a slip not a slip glaze as in your post. Try searching crawl and reticulated glazes too.

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#90921 Friends

Posted by Min on 16 August 2015 - 10:10 AM

I give up....what is a "git"? 

 

git: it’s meaning changes with how you use the word. In in how i wrote it would be along the lines of doofus. It usually has a qualifying adjective in front of it so for example a “silly git” could be used if you use the wrong coloured glaze to touch up a pot. if someone cuts you off in traffic they could be a “bleeping git”,  a cantankerous older person could be a “miserable old git”  

 

(it’s slang so a no go for scrabble)




#90867 What Mesh Sieve Do You Screen To For Dipping Glazes?

Posted by Min on 14 August 2015 - 11:37 PM

Wollastonite, zinc, tin and probably some more I can't think of right now seem to agglomerate both in the bag and some of them in the glaze slurry if it's left for a while. After all the work of making pots a few extra minutes sieving the glaze really is not a big deal. Save one pot from the shard pile and it's worth the effort. 80 mesh is what I've always used for glazes and 60 for slip.

 

 

 




#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




#87581 Pug Mills :)

Posted by Min on 21 June 2015 - 10:39 AM

 

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)

 

Yes I can see the advantages of a pug mill now.  The 400 has a vacuum and they do have a stainless option.  I looked at the MSV25 just now.  I'll have to weigh my options but it seems I need stainless and a vacuum for sure.

 

Did you just attach that handle die or is it a special attachment for the pug?

 

 

The handle die I bought is actually for the larger sized Peter Pugger as Bailey doesn't have one to fit their puggers (might now but not when I bought mine). 

 

There are 4 bolt holes on the outer flange of the nozzle of the pugger, centers are 4 3/4" apart and the largest handle die I could find is only 4 1/2" outside diameter so I couldn't bolt it on. When I need a lot of handles I use small C clamps and there is just enough room to clamp it on. I don't block off any of the handles as there is so much force coming through the die. I only use 1 of the handles (the one at 12:00 o'clock) as the others are way to skinny and flimsy for what I want. The die also fits into my extruder, I use that when I only need a few handles.

 

As to stainless or not this is not something you can change later on, like adding a vacuum. I look at this similarly as to buying a kiln, buying for what you will need in the future not just for now.

 

I just reread the last bit of what I wrote and it sounded kinda preachy, sorry if it comes across like that, didn't mean too!  :)

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#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/

 

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#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  :)