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Member Since 28 Jun 2010
Offline Last Active Today, 09:42 PM

#79530 Glaze Squirt On Kiln Shelves

Posted by bciskepottery on 17 April 2015 - 05:56 AM

The kiln shelves look like the glazes are spitting during the firing, which could be a sign of firing too fast for the glaze you are using.  Our studio had a really great blue that spit -- and would contaminate any pot on the shelf next to it.  Same for the pot that rejects glaze in parts -- firing too fast (and maybe glaze too thick) to allow a good melt.  Glazes bubble on the pot surface when you are at top temperature.  Try a slower glaze firing, especially the last few hundred degrees before you reach top temperature. 


Test tiles are great, but they don't often show how the glaze acts on a full surface, curved surface, etc.

#79509 Questions Re: Kiln Vent, Cones, Controller, And Cooling

Posted by bciskepottery on 16 April 2015 - 06:27 PM



I wanted to try a clay the local supplier did not carry in stock.  They ordered it for me as part of their next order from the company.  Their orders always got the lowest shipping rate so they did not charge me extra for the special order as it added no cost to their order.  If you are not in a hurry (I was willing to wait), then ask the local studio if they would add what you'd like to try to their next order. 

#79507 Help Me Locate A Recent Funny Video Post.

Posted by bciskepottery on 16 April 2015 - 05:28 PM

Tim is a cool dude.  Met him when he was in the Smithsonian Craft Show . . . and I own one of his mugs. 

#79441 Developing A Hair Line Crack In Third Firing

Posted by bciskepottery on 15 April 2015 - 09:12 PM

Try using your slow bisque firing program for the decal firing.  It may take a bit longer to fire the third time, but hopefully it will be a less stressful firing on the platters.  And, for the third firing, add some clay cookies or slats underneath the platters (unless the bottoms are glazed).  Getting the platters, with large surface areas, above the kiln shelf will allow for more even cooling of the platter.

#79434 Stream Of Consciousness Back Fires ....

Posted by bciskepottery on 15 April 2015 - 07:25 PM

Attached File  BULLPEN.jpg   124.13KB   0 downloads


Plan D . . .  fire it in place (although  the insurance folks might have an issue with that . . . but you could end up with a swell new house);

Plan E . . .  move studio to first floor (you really don't need that living room or dining room).

You really can't have too many plans. 


#79429 Turned Foot Rings On Mugs; Elegance Or Affectation?

Posted by bciskepottery on 15 April 2015 - 05:13 PM

This might have been posted before, but it is one of my favorite clips . . . Pete Pinnell on cups, how they are handled, and how he judges them.

#79409 Some Restrictions On Posting To Stop Spam?

Posted by bciskepottery on 15 April 2015 - 02:36 PM

To help put the topic in some perspective, I'd like to share an excerpt from one of the Administrators that was part of a discussion the moderators were having on spam shortly after agreeing to be a moderator.

"One thing to remember is that Ceramic Arts Daily (both the content posted in the features as well as this forum) have incredibly good Google ranking by design, and that makes us that much more visible to spammers and link placers. If you consider that CAD as a whole had 3.4 million visitor sessions and 8.5 million page views last year, it's a wonder more doesn't get through."

Yep, some gets through. It is frustrating. But even more frustrating is when going to delete a spam posting, I see that the spam post had 23 views. C'mon folks, you can tell by the title its spam . . . do you really need to check it out? That only encourages them.

#79393 How To Fire Without Struts Or Unglazed Foot?

Posted by bciskepottery on 15 April 2015 - 10:15 AM

Couple of other options . . .

Use a kiln peep . . . set it on its base and use the post to put your sculpture on. You might need to grind down the diameter of the post, but the peep will not slump during firing.

Fashion a base and post from a soft kiln brick (be sure to wear respirator when doing so).

Otherwise, the idea of a high fire clay should work. But, I'd try the set up on a test piece before committing to a finished one.

#79258 Stoneware Mug Overheating In Microwave Months After Firing

Posted by bciskepottery on 13 April 2015 - 08:28 PM

I have never seen this in my world-it must be more common with cone 6 bodies???

Could be a Cone 6 to 10 clay body fired to Cone 6 . . . low end of functional absorbency.

#79250 Low Fire Pottery

Posted by bciskepottery on 13 April 2015 - 06:41 PM

At cones 06 to 04, earthenware remains quite porous and non-vitrified. But you can fire earthenware up to cone 1, 2 without issues -- I've fired one of the Standard red earthenwares to cone 6 without slumping or bloating. So, you might be able to bisque to a higher temp to give the ware more strength and then glaze fire at a lower temp.

Hesselberth's and Roy's Mastering Cone 6 Glazes includes a receipe for a cone 6 "majolica" base glaze that is quite stiff and does not run. You might want to check that out.

Another option would be to add the personalization with an over-glaze applied after the glaze firing, then re-fired to the over-glaze temp (usually around cone 016 or so) that fuses the personalization but does not affect the high fired glaze. But that would add a third firing to your process.

#79246 Dressing Up The Display

Posted by bciskepottery on 13 April 2015 - 05:21 PM

Looks like the type of display one would see at the Smithsonian Craft Show.
  • GEP likes this

#79115 Dressing Up The Display

Posted by bciskepottery on 11 April 2015 - 07:27 PM

Not being able to sew in a straight/non-straight line, I employed the goods services of my spouse to make similar table covers. She also made me one that fits over a stack of the plastic bins I use to transport pottery; putting the empty bins to use as a small table in the booth.

#78886 Sponge Holders Or White Rice?

Posted by bciskepottery on 08 April 2015 - 07:48 PM

One other use is if you do not cut out the I-phone slot and do not cut out the sponge slot you can use a pair of these one over each ear and you can hear the Pacific ocean in one ear and the Atlantic ocean in the other.Its just a another marking ploy.

Is it true that the Atlantic Ocean one is thrown with the wheel spinning clockwise and the Pacific Ocean one is thrown with the wheel spinning counter-clockwise? Or do I have that backwards?

#78808 Are You Sometimes Childlike In Your Behavior?

Posted by bciskepottery on 07 April 2015 - 08:08 PM

Dance, Tom, Dance . . .

#78653 Iron Speckles

Posted by bciskepottery on 05 April 2015 - 06:39 PM

Wondering if the amber glaze (no specks) is a better melter than the one with specks? The amber has a lot of fluxes (spodumene, neph sye, frits) that might be better at melting the oxides than the second glaze.
  • Min likes this