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High Bridge Pottery

Member Since 19 Feb 2013
Offline Last Active Today, 05:54 AM
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Topics I've Started

Home Made Kiln Controller

04 August 2015 - 11:36 AM

I have always been interested in electronics, still remember designing and making PCB back in school. The availability of good reasonably priced electronics is amazing, also a lot of rubbish out there too :D

 

Did a bit of research into the Raspberry Pi last night and thermocouple measuring. Came across this product that is designed for a type K thermocouple, not the best for cone 10, but, after searching the forum if I can desolder the type K chip and purchase the right thermocouple type it 'should' work.

 

Is it best to go for type S, or type N or type R. I am a little lost there. New chip seems to be around $5

 

No idea how this is going to work out, only studied basic programming on linux but there seem to be enough tutorials out there to copy and past my way to something that could work.

 

http://www.adafruit.com/products/269

 

The MAX31855 performs cold-junction compensation and digitizes the signal from a K-, J-, N-, T-, S-, R-, or E-type thermocouple. The data is output in a signed 14-bit, SPI-compatible, read-only format. This converter resolves temperatures to 0.25°C, allows readings as high as +1800°C and as low as -270°C, and exhibits thermocouple accuracy of ±2°C for temperatures ranging from -200°C to +700°C for K-type thermocouples. For full range accuracies and other thermocouple types, see the Thermal Characteristics specifications in the full data sheet.


Community Challenge #3

03 August 2015 - 08:54 PM

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Welcome to the community challenge #3

 
This is a place where we can challenge ourselves alongside other community members to create ceramic works within the constraints set out in each challenge.
 
The Challenge
 
This challenge is to make 'anything but round'
Try to be creative with your research and how you translate that into an idea for your ceramic work. 
 
The Rules

  • Everybody can enter the challenge, all you need is a registered account on the forum.
  • Work in progress (WIP) images are encouraged. It can help to talk through your research and ideas but please don't spam the topic. Keep the updates informative and succinct.
  • One final entry per community member, images no larger than 1024 pixels wide/high.
  • Attach images to your final entry post along with the text Final Entry - Forum Name
  • This will make sure you are not missed out of the results thread. Also make sure you post your final entry in this thread to be entered into the challenge.
  • The challenge will run quarterly and will be
    • 1st February to 29th April, 
    • 1st May to 30st July, 
    • 1st August to 30st October, 
    • 1st November to 30st January.
  • The results thread will be posted on the last day of the ending month. It will be a collection of all the entries into one post for condensed viewing and some post challenge discussion.
  •  

The Rest
Remember you are entering for your own enjoyment and there could be a risk that your work develops into something new and exciting.
Be considerate of others and don't post opinions without good reasons to back them up. We are all here to improve and progress with our ceramics.
Some dates may vary slightly as this is a community run project and it will depend on members having access to the forum.
 
Have any ideas for a challenge? Post them in the ideas thread http://community.cer...hallenge-ideas/


Glaze Chemistry, Is It Really Biology?

01 August 2015 - 05:42 AM

It is amazing to learn about Silicate formation, found this video really interesting thinking about how all our raw materials are formed and why they have the chemistry they do. Furthermore how this bonding structure can influence working properties.

 

It is funny how close silicon and carbon are and the comparisons I found between the formation of Silicates and my past tuition in organic chemistry at school. It's great to think of the kiln as a small volcano breaking and forming new Alumina/Silicate structures.

 

Can I now view my pots as simple silicate life forms that are hibernating because it is a little cold? :D

 


Community Challenge #2 - Results

01 August 2015 - 04:34 AM

This challenge is to make a plant pot that has been influenced from your research into the season of spring.

 

Cavy Fire Studios

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rayaldridge

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Mossyrock

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Evelyne Schoenmann

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RoGryphon

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Varying The Thickness On Test Tiles To Produce A Slow Cool.

29 June 2015 - 05:34 PM

I just came across this statement. "It is wise to augment your testing with glaze tiles that are much thicker and heavier than the standard flat thin upright ones. A comparison of the glaze on thin and thick tiles will give you a good indication of its reaction to faster and slower cooling cycles (the heavier ones will cool slower and allow you to see any tendency for the glaze to devitrify or crystallize)"

 

Anybody ever tried this before? I have always used thin test tiles. Are we talking an inch thick or so?