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Comment by Darthe Hues on December 13, 2014 at 2:56pm

Hi June, thanks for your response. I posted this question in the Facebook Ceramic Recipes group and Tony answered a bit. Apparently I had added the G-200 to my materials and it was not configured correctly. I typed in G-200 Feldspar Old Blend, but the correct way is G200 Old Blend Feldspar. The screen shot is from my own account at Insight and not in the group area. So here is how the comparison looks now.  The two sets of numbers are much closer. But I don't know if The Silica Alumina ratio is ok. It was 10.2:1 with Custer and with Old Blend it is 9.9:1. Is that a lot of difference or a little. I need to watch the videos again. I wish there was a class.

Comment by June Perry on December 13, 2014 at 11:30am

Darthe, looking at your recipe subbing g-200, it raised your expansion. To get the expansion lower, which would help prevent crazing, particularly if you are glazing porcelain or some white stonewares, you might reduce the whiting a bit and up the talc. The magnesia and silica in the talc will bring the expansion down Then if you want to keep the alumina silica ratio the same, you can lower the silica a hair and up and up the clay a bit to make the recipe be closer to the original. Seems like something is very amiss with the cost. Unfortunately, I can't get into the site with the temporary user name and password George gave me yesterday. If George gets back to me with a fix for that, maybe I can get in there and check out the software. I've been using Insight since the early day when it was on a 5" floppy, so I may be able to see what the problem is.  In the meantime, you can write to Tony and ask him about the cost problem. He should be able to clarify that for you.

Comment by Darthe Hues on November 28, 2014 at 2:43pm

I have watched the videos but don't really understand how to use Insight Live. For my first project I want to substitute G-200 Old Blend Feldspar for the Custer Feldspar(which I don't have) in the MC6G Licorice (GB2). Below I have entered the original and duplicated it. Now I don't know what to do next. Also, why is the cost showing as $1,197.50 a pound? Seems a little pricy. Now that I have my kiln and raw materials I want to get going but this group seems to have fizzled out before I got here. Would love to take part in a class for glazing and using Insight Live. Thanks for any help or suggestions of how to proceed. 

Comment by Penny Berglund on April 4, 2014 at 11:10am

I put up 3 new glazes, hope you all like them!

Penny

Comment by George Lewter on March 2, 2014 at 8:03am

Tony is doing most of his social networking on facebook now, with his videos being posted on YouTube. https://www.facebook.com/tony.hansen.3990 You should probably start "following" him there to keep up with what he is doing with Insight-Live. I'm going to embed his video on improving a clear glaze because it clearly demonstrates how to use the power of Insight-Live in working with the chemistry of a glaze to improve its performance. It also shows how to import a recipe right off a web page that you might stumble upon.

Comment by Kathy Ransom on February 2, 2014 at 8:15am

I've done that in the past as well Norm but did remember to use the group log-in to no effect.

I purchased an Orton controller from Vulcan kilns on ebay.  Completed 3 bisque firings already and am very happy with it so far.  Need to get some glaze firings done ASAP as there's a show I want to enter and deadline is the 5th! I'm excited to do a soak at temp and slow down fire; anticipating some cool effects.

Comment by Norm Stuart on January 25, 2014 at 4:06pm

Remember to choose the Group Login to log-in to the Cone6Pots Insight Live.

I chose the regular Login once and found no recipes - I had a previous individual account and the browser had saved the details.

What type of electronic controller did you get?

Comment by Kathy Ransom on January 25, 2014 at 10:21am

I just purchased an electronic controller for my kiln (Vulcan is awesome!) and am ready for a big round of glaze tests. I'm working on larger forms and need some funky glazes to show texture and give them the look I need/want. I went to sign into our group on insight but username and password were rejected. Can you help me with this Tony or George?

Comment by Norm Stuart on December 9, 2013 at 9:41pm

I've uploaded the 75 glazes we use in our studio so other studio members can access them without needing to ask me.

I like seeing the different chemistry approaches various people have taken to create similar looking but subtly different glazes.

All of the test tile photos I've uploaded use our studio's very slow-cool after firing, so they look quite different to say an Alisa Clausen photo of the same glaze.

To keep a constant reference, I've photographed all of my test tiles on the bottom of the same particle board tray. I guess that my own inexpensive and less distracting version of a color calibration card.

cheap Particle Board Color Reference

The tile cooled faster was taken on a sunny day, vs a cloudy day for the slower-cooled tile on the right.

an actual Color Reference Chart

Of course there's conundrums like this photo where:

Test Tile A is exactly the same color as Test Tile B - but I'd never guess that.

Previously I could click on an Insight-Live database glaze photo to enlarge it, but that doesn't seem to be the case currently - I don't know if that's temporary, or if it this was done to compact the storage space. I get this error message-

Not Found

The requested URL /var/www/insight-live/uploads/groups/9kg34das5g/recipes/DB-1476.jpg was not found on this server.

---

Apache/2.2.22 (Ubuntu) Server at insight-live.com Port 80

Comment by David Booth on December 9, 2013 at 5:06pm

I am not a frequent user of Insight Live, but I would like to share my experience with it. I should however mention that I use Insight regularly on my own local computer. 

Insight Live has a wonderful bank of recipes. It was this that initially attracted me to the site. I did spend some time exploring various recipes, in an attempt to understand some variations in Tenmoku type glazes. I even intended to contribute photos and comments. However my intentions never really materialised. Part of the reason is the difficulty in making good closeup images which depend so much on the lighting. I am rarely able to get an image to look like the real glaze. So apart from all the other factors that influence the end result of a glaze, the image itself, at least mine, is not very reliable. Nevertheless, this is a technical problem and images do give a general idea of what the glaze might look like.  

My other blockage has more to do with the use of a large bank of recipes. My interest is understanding how glazes work so that I can adjust them to move the end result towards a particular objective. I suspect that there is almost as much work to be done in testing a new given recipe that there is in adjusting a recipe from scratch. So although the large bank of recipes has a wealth of information, from my pratical position, I have found it more productive to start from a basic recipe rather than search for a possible suitable recipe in the bank. This is not to downplay the worth of the bank, nor all the work that has gone in to its creation. However, having explored it a little earlier in the year, I find that I need to go through the process of modifying and testing myself in order to understand the behaviour of a glaze. And for this, a simple recipe is a starting point. In the end, I am convinced that understanding the chemistry and physics of a glaze is important, and for this I know no alternative other than actually doing the testing oneself. And I must admit that getting a glaze to a point where it turns out in a reliable way after each firing is a fairly long process. In practice, each firing gives me something new to mull over. A glaze never seems to be a definitive recipe. But that is just one point of view. 

I hope these comments are constructive. David Booth

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