Robert Coyle
  • Male
  • Santa Fe, NM
  • United States
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Robert Coyle's Discussions

Home grown Kiln controller

Started this discussion. Last reply by Marina Reijsmeijer (Kleierij) Jan 13, 2016. 12 Replies

Hi Cone sixers:I am working on a Java based ceramic kiln controller. I have a proto roughed out that works through an Arduino and a solid state relay. I have implemented control logic but I could use…Continue

cratering problem

Started this discussion. Last reply by Robert Coyle Jul 15, 2013. 4 Replies

This is a modification of a glaze from Glazes Cone 6 by M Bailey It gives a real nice matt blue break where thick and  matt green where thin. My problem is that it always looks fine on the test tiles…Continue


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Profile Information

What is your experience with ceramics in general. (Long answer encouraged)
I have been working with ceramics for about 15 years I am retired and like to experiment with glazes and mixing other media with the piece.
What is your current involvement with electric fired ceramics? (long answer encouraged)
I do not produce many pieces during the year. I mostly try different glazes and decoration and fire when I have a kiln full. I fire to cone 5 oxidation.
All our content is viewable by the public. Why do you want to be a member, when you can already see everything as a non-member?
Exchange of ideas with other potters firing cone 6 oxidation
Where do you work on your ceramics projects?
home studio
Do you have your own, or participate in other ceramics Websites:
How did you find this network?
search engine

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Robert Coyle's Blog

thermo readings

Posted on March 12, 2016 at 2:11pm 8 Comments

Well this is pretty annoying... Just for laughs I compared a brand new K  thermocouple with the one in my kiln. The one in the kiln still has lots of metal fused at the junction so i figured that they would be pretty much the same.

SURPRISE! one read 34.6 mv and the other 36.4mv. So I thought i would try a third as a tie breaker... 33.9 mv.  The third one was just a wire probe rather than the beefy kiln probes. but it was a K. type

we're talking about a 300 deg F+ spread at…


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At 8:17pm on June 21, 2014, George Lewter said…

I change the slide show from time to time. Currently it is showing a random collection of 100 slides from the entire library of over 5000 photos. By mathematical odds, most of them will not be the latest posted. It does show photos that newer members are likely not to have seen.



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Low cost flat lapping disc can be used on you potters wheel if you, drill bat pin holes in it, and provide a trickle of water to cool it. At, 120 grit for aggressive material removal. Click the image to purchase 

Members have had great things to say about John Britt's new book, Mid-Range Glazes. Click the image to buy from

Purchase Glazes Cone 6 by Michael Bailey, The Potters Book of Glaze Recipes by Emmanuel Cooper, or Making Marks by Robin Hopper, all available at amazon.comMastering Cone 6 Glazes by John Hesselberth & Ron Roy is now out of print.

Harbor Freight is a great place to find unbeatable prices for better HVLP spray guns with stainless steel parts and serviceable economy models, as well as detail guns, all tested by our members for spraying glazes, as well as compressors to power the guns. As yet no one has tested and commented on the remarkably inexpensive air brushes at harbor freight.

The critter siphon gun is a spray alternative that is well liked by some of our members, and is available at amazon.

Amazon is also a competitive source for photo light tents for shooting professional quality pictures of your work. They also have the EZ Cube brand favored by several of our members. You might also want to purchase the book Photographing Arts, Crafts and Collectibles . . .

If you are up to creating videos of your work or techniques you might want to invest in a flip video camera

Following are a few scales useful for potters. Ohaus Triple Pro Mechanical Triple Beam Balance, 2610g x 0.1g, with Tare $169.00

And finally a low cost clone of the OHaus. The Adam Equipment TBB2610T Triple Beam Mechanical Balance With Tare Beam $99.62

ebay is a great alternative for many tools and the equipment used in the ceramics studio - kilns, wheels, extruders, slab rollers are often listed there both new and used.

Tips for Members

If you just want to spout off, it is best accomplished as a blog posting. If you want to get more guidance and ideas from other members, ask a question as a new discussion topic. In the upper right corner of the lists for both types of posting, you will find an "+Add " button. Clicking it will open an editor where you create your posting. 4/16/2014

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