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MMB

Member Since 22 Nov 2010
Offline Last Active Apr 04 2015 10:29 AM
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Posts I've Made

In Topic: Guess The Rock.

04 April 2015 - 10:28 AM

Ive ground down a stone before and it ended up in some pretty fine dust. I used a cheap tile cutter with a diamond blade and just ran the stone through it one line at a time. The catch underneath the tile cutter will trap most of the cut stone in a water slurry. Pour it off, dry it, and it crumbles to dust. I did this a year ago but never got around to testing it in a glaze. Im sure theres possibly a level of metal "contaminating" the dust just from wear and tear on the blade. Either way it beat pounding with a hammer and dealing with a container bouncing around as you hit it.

 

Oh and because you have to remove the guard on the blade you are bound to get a little wet so wear a face mask.


In Topic: Dream Tool

25 January 2015 - 02:06 PM

When I am hand building bottles (and some mugs), I use a dowel with a wooden ball on each end (different diameters) and use it to stretch the belly of the piece by hammering from the inside.  What I REALLY need is a similar tool that can be inserted through a narrow mouth/bottle neck then inflated/expanded at one end to perform the same action...then deflate the expanded end so it may be pulled back through the small opening.   It would be something like a throwing stick, but one end would be expandable/inflatable.

 

Make my day and tell me that someone is already making this ;)

 

-Paul

 

P.S. I make all of my tools for creating airways in ocarina construction...lots of unsuccessful experiments to get there, btw.

 

 

This sounds very possible. I have an idea of how the base tool could be fashioned around. Would the round end have to be a perfect sphere of would it be advantageous as just a spherical smoothed bodied shape?


In Topic: Frit As A Sealant

14 January 2015 - 11:16 AM

An issue that would arise is the clay body maturing to cone 6 and then trying to get the glass melt to really adhere to a nearly if not vitrified body. Glass gets sticky but Im not sure if it would really be the best to last the test of time. Im sure some others on here will better inform. My 2 cents


In Topic: More Pit Fire Questions...

19 December 2014 - 10:37 PM

Saggar firing is another alternative if choose to use your kiln. You can do mummy saggars which are easy, quick, and effective.


In Topic: More Pit Fire Questions...

19 December 2014 - 10:35 PM

I personally got tired of pit firing. It is beautifully random and also rewarding for the work involved. Yet the limitations of colorants kinda got me bored. Burnishing isnt absolutely necessary. Ive enjoyed pots colored by the flames and then coated in acrylic spray brings out deeper tones like the pot was wet. Youll see the colors more vibrantly when cleaning with water but once dry some of the lighter flashings wont be visibly, thats where the acrylic comes in. I have had very little breakage doing pit fires and thats with making the whole stack, tossing gasoline, and fire away. Yet I have used a white stone ware primarily by Highwater. Most were slip cast by this stone ware, not true slip, just made a slurry and defloced then poured. Micaceous red clay is very lovely. I have used natural GA clay which is loaded with mica. Mica though looses its luster in higher fire, but for pit fire you stay low fire to keep the clay porous to accept better coloring.

 

I live in NE Georgia and have gotten good results during winter. Zone 8/9. I had a small dug pit and I would bury the pots on top of at least 6 inches of saw dust/salt/copper carb. Then continue with the saw dust covering then layer after layer make the materials bigger and bigger till it was about 2 - 3 feet about the hole. I would continue to add wood (lightly) as it burned down till ground level, mind you the hole was about 2-3 feet down so the fire was still good and strong. I considered the amount of coal that results from a typical fire and continued to add wood to make it good and hot but also to leave a nicely large coal bed in the end that almost covered the pots. Once I figured it was just about done and low enough I covered with a piece of tin.

 

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That was one of my first ones. ALways make sure there is enough air flow but not too much. You want a nice HOT but slow burning finish. The wind blew in the direction of where the rock was missing and it was just enough to keep things going. One thing I will say is give it a day or two before digging it all up. You will be amazed at just how long ashes will stay hot enough to burn you. Not to mention the pots retaining the heat. I ruined a pot once by pulling them up too early and melted a big black rubber thumb mark from one of my gloves. One of my best, which isnt the best out there, but I was very pleased was this guy. Just Salt/Copper carb/ saw dust/ wood/ and a small amount of cow manure.

 

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One thing to keep in mind is that some potters accomplish great pit fire flashings by pitfiring then refiring in a kiln to burn off some of the colors then pit fire again. Ive never tried it. Believe it or not that one has been glossed with acrylic and has held a plant for the past 5 or so years in a sunny room and never lost its colorings. Some say the reds will fade in the sun. I left a pot on a pole, uncoated in the sun for over a year and no signs of color loss. Roll with the punches and give pit firing a try. Im glad I did but other avenues opened up for me. I still consider it from time to time because where I live I can access tons of free wood etc to accomplish everything.