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One elegant solution I have seen: Stainless steel tubes thru the kiln. Notmally closed at upper end, and when cooling they are left open. The cold ambient air never enters the kiln, only heat is transferred from kiln air intu tubes, where it warms up and while expanding has an chimney effect of incr...

Amy wrote: ...She said it takes a huge amount of ego to just put a mark on a canvas. That kinda made me go holy s**t! kaj Frank, a top ranking Finnish designer (and glass artist) said once to me. "If you have made one good piece, it shows you have talent, if you can't make more it shows you can...

But we need MORE.

I'll pick them here and insert the necessary changes.

It was really a fun job - even in a foreign language
I learned a lot.

-lauri

This thread hs been the most thrilling adventure story
I have read for a long time.

Can't wait for the next episode
-lauri

Hi Judy, In Czech and Poland they make a lot of lead crystal, but it may be soda lome as well. Can you measure the specific weight. Fill a bucket with water to the rim Immerse the piece(s) into it. Some water flows over. Lift the glass out, and measure how much water is needed to refill. That's how ...

As I opened this can of worms... I do it the other way. I clamp down the drill - yes I use it on a hand drill for speed control. For edges the pad is vertical, for bottoms horizontal. a DIU lapwheel. I keep the piece in hands and move it against the pad. For sculptural forms, I use it like a car pol...

When I ordered my first kiln I was a TOTAL neophyte. I gabbed all kind of information here and draw the specs. It was built by a local ceramic kiln manufacturer. I ordered holes on top and in the middle of the bottom. In the vitrigraph experiment I had a flowerpot in the kiln. The glass cooled too f...

Hi Stuart The disks I have are of Telum Brand, most propably US made. The grinder is of that type, a bit stronger that car polishing tools. In fact I use the pads on a handheld drill - to get variable speed control. They work best in moderate speed. I do grind of flashings, sometimes level out the b...

From the WG Dictionary Colloidal suspension: When a solid is mixed into a liquic in so small particles that they do not settle with time, they are in colloidal suspension. Metal particles in colloidal suspension are used to color glass. A liquid to liquid can also be colloidal suspension, like in ma...

Driving out the moisture is one thing, as said. Burning out the binders - if a fiber kiln is another. Went the room! Burning in the elements. If you have Kanthal elements, they contein aluminium. It is supposed to oxidizeand form a protective layer on the wire. Therefore the first firing must have s...

I have three favorites, for different reasons. 1. The first book I got: Lundstrom's 3 volumes. I read it bimonthly. The book about what can be done. 2. The most recent booK: The dictionary of Glass by Charles Bray. HAve read it only twice yet. A wonderful bedside book. In addition to this I consulta...

I have only two hand pads. The set rotating pads I have for angular grinder goes to 1800 (orange). It gives a nice polish to glass, but not perfect gloss. I suppose pumice and cerium are unavoidable steps. One should use the pads in binary order. First coarse, then double the grit and work until mag...

Promosing ideas here! 6 to 8" glass has a remarkable hydraulic preassure. I think some flashing is inevitabe, andif it happens, the preassure may lift the upper layers to float on glass. Woth of thinking further. Roseanna's tip to cast or model an inner mold in a fiber blanket saggar is great. ...

Mine are of two brands with different color coding!

A rule of thumb SEEMS TO BE that
coarse pads have small patches of abrasive
fine grits come with larger patches.
-lauri

There are not so many different receipes for reds and yellows. Receips conteining selenium are reactive. It has something to do that these batches are made under reductive athmosphere. Rule of thunb: Strong yellows and reds are reactive with blues and greens. There are some greenish yellows and pink...

I have adjusting screws on the kiln legs.
The bottom of my fiber kiln has warped,
so I have to level the shelves, too.
I use pairs of vedges I have sawn from kiln brick.
A pair of vedges > <keeps the top level but adjust the height.

-lauri

The dictionary is growing nicely. At present it has some 150 entries. I think it is becoming useful, I'll launch the first version soon. I still have to work out the hyperlinks between entries. I have the British dictionary of glass by Charles Bray. However I try to avoid copying definitions (copyri...

?bail
?Catcher
?Chad
?Cloisonne

can you help with these terms. all are new to me

-lauri

What is "bail"?
Is it the same as a "Catcher"
-lauri

I have not really done pate de verre. The information was from my glass chemist, Mr. Antero Tammisto. He provides the Finnish factories with colored glass, around 96 COE.

I have used his powders to paint between float. No observable stress. Done the same with BE powder on float.

-lauri