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Bob Coyle

Member Since 06 Jun 2013
Offline Last Active Yesterday, 06:03 PM
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#117634 Silicone Caulking Cure Time?

Posted by Bob Coyle on Yesterday, 06:01 PM

It mostly loses solvent  in 24 hrs, but depending on the type, and how much air circulation it gets. it could take days to really cure out enough to not allow a bearing to slide off center.


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#115661 I Ate Some Clay.

Posted by Bob Coyle on 04 November 2016 - 02:18 PM

it wouldn't.... I tied throwing very fine silt and since it did not have the plate like structure of clay, it would not throw no matter how fine.




#114285 Wedging Clay

Posted by Bob Coyle on 04 October 2016 - 06:24 PM

Hi Sara78

 

Your best friend as a beginner... other than all the friends you will make here... is Google and YouTube. Just go and search on "wedging clay" and you will have access to how all the people of the world approaches wedging. I got  190,000 internet links to wedging and 5390 on line videos on how people do it.

 

Just Pick the one that works for you. There is no right or wrong way . ceramics has been around for millennia and every aspect is still evolving.

 

To begin with, just use the clay out of the bag. When you develop scrap that you will want to re-use then you MUST wedge it to get the air out.




#109069 Bisque Fire With Paper

Posted by Bob Coyle on 20 June 2016 - 11:21 AM

If you use paper, it might be good to not use any with lots of colored inks. The pigments are mostly organic, but I think that some times there are metal compounds in the ink




#109030 Just An Other Newbie

Posted by Bob Coyle on 19 June 2016 - 03:58 PM

There are worse addictions... Remember, in throwing, once you get past centering... its all uphilll!




#108007 Building A Work Table

Posted by Bob Coyle on 02 June 2016 - 01:41 PM

I'll throw in with Neil, hardboard is a great surface for working with clay. Also I would recommend a separate wedging table with a thick plaster surface. Mine is 3 inches thick and 24x24 inches wide. I have 2 inches of concrete on the bottom and an inch of plaster on the top. I built it at just the height I need to be able to put my full weight downward into the wedge, rather than work only from the shoulders. Since the wedging table is separate, you can really slam the clay down  without shaking up everything else. I can also use it to roll slabs, using my trusty rolling pin.




#107274 Lose The Sitter Your Opinion Counts

Posted by Bob Coyle on 21 May 2016 - 08:11 PM

Leave the sitter. Digital controllers can fail, but gravity does not. Put a cone higher than you will reach in the sitter. It's there already, so why not have one more layer of fail safe.




#107236 Newbie Needs Help With Glaze Cone 6 - Can It Really Be This Hard?

Posted by Bob Coyle on 20 May 2016 - 06:11 PM

Cheat and throw in 0.5% cobalt carb.




#106547 Does Anyone Know How To Achieve Similar Results To This?

Posted by Bob Coyle on 08 May 2016 - 06:22 PM

It's simple... terra sig ... and ten years of practice.

 

Good luck Muddy




#103330 How To Increase Crackle Effect In Raku

Posted by Bob Coyle on 09 March 2016 - 07:28 PM

A lot has to do with the glaze and clay body. We are talking forced shrinkage here. I have found that thicker pieces sometimes crackle better than thin, but I have not a lot of experience in this.




#103001 New Blue Pigment

Posted by Bob Coyle on 02 March 2016 - 08:58 PM

“YInMn” blue... Humm ? Yttrium,Indium, manganese  here is the link to what they did http://colmat.icmse..../P27_DP2011.pdf

 

I agree with Niel, probably would be unstable in a melt. The pigment itself is created at 1100C, so you might be able to pull off a low fire, but it still would probably react with the flux and change color..  The glazes they made don't seem to be that impressive.




#100566 Stop Me Before I Ruin It Please

Posted by Bob Coyle on 24 January 2016 - 06:18 PM

Like Tyler says.... FIRE A TEST TILE! In fact fire many with different glaze/underglaze overlaps




#99827 Design Trends 2016

Posted by Bob Coyle on 15 January 2016 - 09:21 PM

Interesting Miss B... I have no doubt that the 3-D print fad will effect ceramics. It is no stretch at all from using molten plastic to thick slip to build a piece. Then the question arises... is it art or technology. In my mind it is technology, although you may use a graphics development environment to program what is made. I am pretty retro. I think that it doesn't count as art unless you are creating it directly with your hands. Of course , this would also rule out photography as a fine art media, and I have no problem with that.  I hope expressing my opinion doesn't get me flamed again, but this is ONLY my opinion.




#99529 Home Made Kiln Controller

Posted by Bob Coyle on 13 January 2016 - 05:50 PM

screen dumps of the user interface ...Attached File  chart.jpg   166.2KB   0 downloadsAttached File  ramp.jpg   93.28KB   0 downloads




#97982 My Journey In 2015 - A Big Thanks To This Community.

Posted by Bob Coyle on 25 December 2015 - 12:47 PM

Throwing like a pro Joseph. I like how you experiment with your forms. Looks like great fun.

 

Onward to 2016!