Search found 2313 matches

by Bert Weiss
Fri Mar 11, 2016 8:14 pm
Forum: Techniques and Tools
Topic: DTC 800
Replies: 7
Views: 11021

Re: DTC 800

Why would I want to consider changing? Does the rtc 1000 offer any advantages? Jim They also make the RTC 1000. You might want to look at that one. Typically, Bartlett supplies the board attached to the front of the controller. You need to add a separate power supply. They will give you the spec. h...
by Bert Weiss
Fri Mar 11, 2016 8:05 pm
Forum: Techniques and Tools
Topic: Annealing question
Replies: 15
Views: 23505

Re: Annealing question

Thanks Brad, I have a hard time understanding Graham's book. I've been a glass blower for 28 years and never had trouble with my annealing but kiln work is new to me and didn't know if I was missing something. What you said makes sense and follows my common sense approach to glass. There is an esse...
by Bert Weiss
Thu Mar 10, 2016 12:49 pm
Forum: Techniques and Tools
Topic: DTC 800
Replies: 7
Views: 11021

Re: DTC 800

They also make the RTC 1000. You might want to look at that one. Typically, Bartlett supplies the board attached to the front of the controller. You need to add a separate power supply. They will give you the spec. http://www.bartinst.com
by Bert Weiss
Wed Mar 09, 2016 12:41 pm
Forum: Techniques and Tools
Topic: Where can I get/make glass paints for screen printing?
Replies: 5
Views: 9397

Re: Where can I get/make glass paints for screen printing?

Right from Warm Glass Studio's store
http://www.warmglass.org/enamels

You can mix the medium in yourself. It's not hard to do.
by Bert Weiss
Fri Mar 04, 2016 10:27 am
Forum: Techniques and Tools
Topic: Imprints/Flat slumping
Replies: 3
Views: 5669

Re: Imprints/Flat slumping

I use finely ground alumina hydrate instead of dry plaster. For the bed to make the imprints in, I use a mixture of sand and alumina hydrate, about 25% alumina by weight. I would use alumina between the sheets. I have done this, just as I describe, and then resin laminated the 2 sheets of 10mm float...
by Bert Weiss
Wed Mar 02, 2016 12:26 pm
Forum: Business Topics
Topic: How to Calculate Shipping Charges?
Replies: 4
Views: 10332

Re: How to Calculate Shipping Charges?

The best deal out there for shipping heavy stuff that manages to fit in the box is USPS flat rate boxes.

On the other side, I know people who will only ship USPS overnight, for a minimum of handling.
by Bert Weiss
Wed Mar 02, 2016 12:17 pm
Forum: Techniques and Tools
Topic: Viewing window in homebrew fibre kiln
Replies: 22
Views: 34211

Re: Viewing window in homebrew fibre kiln

My first kiln is a front loader just a bit smaller than yours. The door is made of a combo of mineral wool covered with blanket (interior surface) with an expanded metal skin. I cut a round hole, about an inch and a half in diameter, in the expanded metal and insulation, and stuffed a wad of blanket...
by Bert Weiss
Mon Feb 29, 2016 11:48 am
Forum: Techniques and Tools
Topic: Viewing window in homebrew fibre kiln
Replies: 22
Views: 34211

Re: Viewing window in homebrew fibre kiln

Just cut a hole and slip in something like a brick, or a wad of fiber blanket. Pull the plug out and look in.

2" of fiber blanket is under insulated. It must run hot to the touch. It will work though.
by Bert Weiss
Wed Feb 24, 2016 4:01 pm
Forum: Techniques and Tools
Topic: large kiln
Replies: 8
Views: 12087

Re: large kiln

Fiber all the way. Brick floor is acceptable. I just built a kiln a bit larger than you are looking for. What is your budget? Message me to talk more about it.

Bert
by Bert Weiss
Fri Feb 12, 2016 7:02 pm
Forum: Techniques and Tools
Topic: The likely cause of my eruptions?
Replies: 4
Views: 6749

Re: The likely cause of my eruptions?

Put a straight edge over your shelf. I suspect you will find a dimple under the place where the bubble blew up.
by Bert Weiss
Thu Feb 11, 2016 12:38 pm
Forum: Techniques and Tools
Topic: CaN A PIECE BREAK BECAUSE OF BAD ANNEALING???
Replies: 9
Views: 12059

Re: CaN A PIECE BREAK BECAUSE OF BAD ANNEALING???

Stress is stress, regardless of where it comes from. Stress is cumulative, so adding a little bit more can cause a crack. If you have compatibility stress, combined with annealing stress, and you add a puff of cold air to it, your result is not a surprise. Many years ago, I was trying to cut the thi...
by Bert Weiss
Wed Feb 10, 2016 3:40 pm
Forum: Techniques and Tools
Topic: Slumping small and large projects together
Replies: 8
Views: 12287

Re: Slumping small and large projects together

On a second thought, I did all draping together, and will do the slumping separately. Don's opinion was supported by many colleagues- and I will post photos. I think this is a good strategy. Draping is not always supported, so the glass can keep on stretching and sagging. Slumping in to a mold is d...
by Bert Weiss
Sat Feb 06, 2016 10:58 pm
Forum: Techniques and Tools
Topic: Slumping small and large projects together
Replies: 8
Views: 12287

Re: Slumping small and large projects together

There is a point at which you have heated the glass too much and it will begin to fall down the sides of a mold. Until that point, the glass will slump or drape, until it hits a solid surface. Float glass is far more forgiving than the fusing glasses. I often fire float glass in bowl molds as hot as...
by Bert Weiss
Thu Feb 04, 2016 12:50 pm
Forum: Techniques and Tools
Topic: Help me, please
Replies: 1
Views: 3821

Re: Help me, please

Hello every body, I broke a piece on which I have worked a lot. Tough! I glued it together, and it is now being fused. It seems to me , that there remained a 'scar' a mark that shows that there was a break there, even though it is probably fixed now. My question is - Is it possible to do something ...
by Bert Weiss
Mon Jan 25, 2016 1:50 am
Forum: Techniques and Tools
Topic: Frosted Finish Glass Paint / Enamel
Replies: 11
Views: 17220

Re: Frosted Finish Glass Paint / Enamel

Valerie, That's not it --- it looks like it might have some interesting affects but the temps are somewhat higher than I usually go. Bert, I tried to Google things before I posted a question --- but after I googled your satin etch --- I came up with a Reusche product. It has a fairly wide firing ra...
by Bert Weiss
Sun Jan 24, 2016 1:16 pm
Forum: Techniques and Tools
Topic: WORKING WITH LIQUID ENAMELS OR GLASS PAINTS
Replies: 33
Views: 43716

Re: WORKING WITH LIQUID ENAMELS OR GLASS PAINTS

Thanks Bert, A nice piece! I must insist do you PRINT on the glass or paint on it??? I do not paint but PRINT. I believe it is different. And IF you print, has it happened to you that you fired a piece MORE THAN ONCE, with the print on it, and it was not harmed??? Ferro Samba? THanks, Havi I don't ...
by Bert Weiss
Sun Jan 24, 2016 11:06 am
Forum: Techniques and Tools
Topic: WORKING WITH LIQUID ENAMELS OR GLASS PAINTS
Replies: 33
Views: 43716

Re: WORKING WITH LIQUID ENAMELS OR GLASS PAINTS

Bert , is there a special benefit by firing upside down - the print on what would be the upper side of the piece later? Does it relate to surface tension??? i.e. the color will not stretch or something? [the wafers do - they stretch, being fired on the top , but would not stretch if they are fired ...
by Bert Weiss
Sat Jan 23, 2016 10:10 pm
Forum: Techniques and Tools
Topic: Frosted Finish Glass Paint / Enamel
Replies: 11
Views: 17220

Re: Frosted Finish Glass Paint / Enamel

I'm not sure if this is a good one or not, I wouldn't want an opaque satin etch. http://www.thegoodstuff.com/jgetchljose ... paint.html
by Bert Weiss
Sat Jan 23, 2016 3:46 pm
Forum: Techniques and Tools
Topic: WORKING WITH LIQUID ENAMELS OR GLASS PAINTS
Replies: 33
Views: 43716

Re: WORKING WITH LIQUID ENAMELS OR GLASS PAINTS

My favorite stained glass artist of all time is a fellow named Joep Nicholas. He is credited with having produced the most square footage of any stained glass artist in the 20th century. He pioneered a technique using a variety of media in a particular order to paint faces and drapery in a single fi...
by Bert Weiss
Sat Jan 23, 2016 12:13 pm
Forum: Techniques and Tools
Topic: Frosted Finish Glass Paint / Enamel
Replies: 11
Views: 17220

Re: Frosted Finish Glass Paint / Enamel

The product you are looking for is called satin etch. You need to make sure you are firing to the recommended temperature. Satin etch is basically a clear glass frit, possibly with some white alumina hydrate powder added. This frit is fired to a temperature hot enough to make it stick, but not hot e...