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Understanding Glass Fusing Firing Guides

     

Firing guides are our glass fusing recipes. We follow schedules published by trusted sources to ensure we have fusing success. I’ve been fusing glass for more than 35 years. In that time, my personal firing guides have been adjusted and evolved into recipes I rely on for predictable results. Recently, taking the wise advice of a fellow fuser, (thanks Larry!) I reworked and updated my firing guides to include both 96 COE and 90 COE. Taking it one step further, I now also include Fahrenheit as well as Celsius temperatures.

As I mentioned a few weeks ago, I’m hard at work on a new glass fusing eBook. The following is an excerpt from my book. I hope you find it helpful and informative.

Understanding Firing Guides

A firing guide is a step-by-step schedule to fire glass of a certain size and thickness to achieve a specific result. Firing guides are carried out in steps called segments. Larger, thicker projects have more conservative firing guides with more segments. The rate per hour indicates how quickly the kiln should change temperature in an hour. Temperature is the target temperature the kiln will be taken to for a specific purpose. The hold time indicates how long the kiln will remain at a certain temperature to achieve the desired results.

Because every kiln fires differently, firing guides suggest you test fire the guide in your kiln and then adjust if needed. But they don’t give advice as to how to make those changes. I write new custom firing guides all the time. My advice is look at firing guides that have worked for you in the past. Decide what you want differently this time and then change either the target temperature or change the hold time at that temperature.       

How to adjust the firing guides to achieve the results you want.

Change one thing at a time.

Change the target temperature by 5° one way or the other. Lower the temperature for a harder edge or increase it for a softer edge.

Or

Change the target temperature hold time by 5 minutes. Reduce the hold by 5 minutes for a harder finish or increase the hold by 5 minutes for a softer finish.

And

Compare firing guides. Identify similar patterns in the heating and cooling stages. Combine the segments that make sense for your artistic style, type of construction and the size of your kiln. Then write your own custom firing guide.

Take notes to build confidence and consistency into your kiln work Take before and after pictures to repeat your success and learn from your experience.

Firing Guides for 96 COE & 90 COE

These guides are based on my own experience and the glass manufacturer’s firing guides.

Kilns fire differently.

Test these guides and adjust them as needed to get the artistic results you want.

These firing guides are for 96 COE 7 90 COE projects 12 ” (30.5Cm.) in size or smaller made with 2 layers of glass plus accents.

TACK FUSE

1365°F (741°C) 96 COE

1300°F (704°C) 90 COE

CONTOUR FUSE

1425°F (774°C) 96 COE

1400°F (804°C) 90 COE

FULL FUSE

1465° (796°C) 96 COE

1480°F (804°C) 90 COE

Happy Fusing!

Lisa

Follow my blog for weekly inspiration sent to your inbox! 

NEW Webinar

Fire & Ice by Lisa Vogt

NEW Fire & Ice Webinar July 19, 2022

Hot techniques for cool projects!

NEW Fire & Ice Webinar August 4, 2022

Hot techniques for cool projects!

Get fired up for advanced design techniques that invigorate your artistic spirit. You’ve loved making all the simple projects. Now experience the thrill of breaking away from familiar shapes to create striking free-form fused glass designs. 

It’s easy! In this comprehensive webinar, I will guide you step-by-step from beginning to end. I’ll share my methods of glass selection, show how to lay out organic shaped projects for success, and offer fabrication tips for professional quality results. I’ll also demonstrate how to beautifully and safely display your sculptural artwork.   

Join me and I’ll show you how to create free form projects that ramp up the visual elegance of your work. You’ll love my easy-to-follow instruction and seeing how I create intricately detailed designs in just a few steps. You’ll be amazed by the shortcuts and construction tips I offer that result in polished works of art with a gorgeous three-dimensional flair.

Beginner, intermediate and advanced fusers alike will enjoy applying the many simple, yet effective techniques I share in this in-depth, live event. 

I include my custom firing guides, project patterns and materials list in PDF form. 

Get excited about your glass work again! Attend this inspiring event and you will leave with the burning excitement and the cool confidence to create your own striking pieces of art. You’ll be eager to break out of your comfort zone and reinvent the possibilities while taking your glass art in a new and exciting advanced design direction.   

Fused Glass Sculptures Webinar August 23, 2022

Creating striking sculptural fused glass forms is easy when you know the professional tips and tricks!

Join me in this comprehensive webinar and learn how easily you can put tried and true methods to use in unlikely ways, to create extraordinary sculptural art.

Enjoy the thrill of limitless possibilities.

In this in-depth webinar, you’ll learn pro tips and tricks for better glass cutting. See how to mix different fusible materials to make more elaborate designs.

You’ll be amazed how using standard slumping molds in unique ways can drastically improve the shape of your art.

You’ll be inspired by the innovative combination of ordinary techniques I share.

You’ll be confident to fuse glass after seeing how easy it is to load, program and fire a kiln.

Best of all, you’ll have an exclusive technical advantage with the advanced understanding of my dependable firing programs. And you’ll love the stunning three-dimensional results you can achieve by fusing all of these concepts together.

Beginner and advanced students alike will find inspiration, motivation and renewed artistic freedom from seeing the step-by-step construction of more than 5 sculptural projects in this webinar.

After this exciting webinar you’ll have the professional knowledge and increased confidence to incorporate these innovative methods in your new work.

In addition, you’ll have a working knowledge of kiln operation, custom firing guides, and a deeper understanding of sculptural glass fusing fabrication.

You’ll have the burning desire, and the cool self-confidence, to take your passion to greater heights.

Lustrous Lanterns Webinar September 1, 2022

Light up with me! Create colorful luminaries to brighten your home, office, porch, or anywhere else you’d enjoy the comforting glow of a dazzling accent light.

In this comprehensive live event, I will show you how to make 6 sparkling fused glass lanterns. You’ll learn how easily you can construct and build stunning 3-D lamps. I’ll guide you step-by-step through the many stages of construction, including pattern preparation, glass cutting, project assembly, fusing, slumping, and how to “cold fuse” the lanterns together.

You’ll also be shown how to finish the lanterns with custom, professional quality glass display bases. In addition, I’ll share how to utilize ready-made clear glass candle shelters to make fast and easy pick-me-ups. I also show several quick and simple methods for lighting your beautiful new creations. Along with detailed instruction, you’ll receive 6 full-size lantern patterns, my project-specific firing guides, and supply list.

Beginner, intermediate, and advanced glass fusers alike will love the wide variety of unique shapes and elegant new patterns,  custom designed to enrich any decor. Join me to rekindle your creative spark with lustrous lanterns designed to set your artistic imagination aglow.   

Fused Glass Sink Workshop, 4-Day, Hands-on Workshop September 13-16, 2022

You’re invited to join me for this intense workshop held in my private studio in Wesley Chapel, Florida. Class size is limited to 3. All class materials are included with the exception of full sheets of dichroic glass!

Kiln formed sinks are the hottest functional, art glass accent! In this class I’ll show you the many advanced techniques I use to make lavish basins. I’ll cover how to build large bowls, concepts for design, color selection and much more.

Students will learn how to design and cut glass for a sink that reflects their own design style. While the sink is firing, you’ll build several small, projects using a variety of advanced techniques.

You’ll learn how to load the fused glass into the sink slumping mold, how to drill and countersink the drain hole, as well as finishing techniques. In class we’ll go over kiln requirements, my project specific firing guides and helpful installation tips.

Intermediate and advanced students alike will gain valuable knowledge that they can apply immediately to push their work to an exciting, new level of sophistication. Each student will leave class with a sink, several smaller projects, process outlines, and the technical information needed to fire at home. With the professional tricks and secrets revealed, you’ll be ready to dive in and take the fused, sink plunge!

Sculptural Fused Glass, 4-Day, Hands-on Workshop, October 18-21, 2022

Register now. Class is limited to 3 students and held in my private studio in Wesley Chapel, Florida. All class materials are included.

Sculptural fused glass is the creation of three-dimensional forms that rise above a flat plane. Artists create 3-D works by using multiple methods and techniques with complete freedom of materials and process.

You’re invited to join me for this intense workshop held in my private studio in Wesley Chapel, Florida.

In this comprehensive class you’ll learn how to design, build and creatively display multiple stunning pieces of art that reflect your personal style.

You’ll push the boundaries glass imposes. You’ll use innovative approaches to design and combine multiple advanced techniques to construct original sculptural art. You’ll enjoy: the one-on-one instruction, making large scale projects, the well-equipped classroom, and the intimate class size.

Its hard-core fusing in a nurturing, relaxed environment. You’ll love the concentrated, in-depth study and creative momentum you’ll gain while actively producing nonstop, for four consecutive days. You’ll also learn how to design and build custom art glass displays that enhance your original work.

You’ll leave class with several completed sculptures, a working knowledge of kiln operation and custom project-specific firing guides. You’ll have the design confidence and hands-on experience to rise above and take your work to the next level.

This is the turning point workshop you’ve been waiting for! Let’s get fired up!

Artwear T’s by Lisa Vogt

Artwear Designed for Artists by Artists Tell them how you really feel with bold T-shirts, Eco-conscience tote bags and sassy mugs.

Artwear Eco-totes by Lisa Vogt

Artwear Mugs by Lisa Vogt

Downloadable instructional videos for every skill level.

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Secrets to Making Stand Out Art Revealed

Excerpt from Breaking Through-Making Exhibition Quality Art Video by Lisa Vogt

Are you ready to take your work to the next level?

I’m sure you’ve noticed the dramatic increase in outstanding, professional quality fused glass artwork being made by your fellow artists. You admire their originality and the advanced skills it takes to produce such striking art. But then you find yourself wondering what makes them so special. Why aren’t your pieces getting noticed?

What’s missing?

To answer that question, we first have to consider what makes artwork stand out. There are two key features that make artwork exceptional. The two elements are unique form and dramatic imagery. Design your projects with these basic concepts in mind and you’ll immediately see an increase in the desirability of your work.

Unique Form

Sculptural Fused Glass Video

Shape up! Move away from the simple square, rectangle, and circle. These shapes are tired. They have their place when making a production series where minimizing material, fabrication, and labor costs is essential for profit.

But if you want your work to rise to gallery status, give your artwork an unexpected or brand new shape. This elevates your fused glass from a practical or functional container, to a glamorous, three dimensional, fine art sculpture.

Get creative, combine slumping molds to make one-of-a-kind shapes. Use fiber paper or fiber board to change the profile of your fused glass. You’ll quickly find, the possibilities are endless. 

Dramatic Imagery

Painting with Frit Video

What makes a painting memorable? They’re generally rectangular in shape, so what makes one unforgettable? It’s the subject matter, of course. Taken a step further, it’s the artist’s distinctive composition, their unique way of interpreting the focal point and the special way the scene in rendered. Give the viewer a fresh look at something familiar and they’re hooked.  

There are several ways to engage the viewer and hold their attention longer with your subject matter. Render a recognizable subject in a surprising way. Use unexpected colors or add props, like a hat on a dog or a tutu on a cat. Include an interesting background that enhances the subject. Place your focal point in an unusual setting. Put a flower on the moon. Or, put the moon on a flower. Visualize a composition that extends beyond the rectangular limits of your glass canvas. And then build it with  enthusiasm that shows.

The Winning Combination

Go with the Flow Video

     

Combine both unique form and dramatic imagery and your work will rise above the rest and get noticed. It’s easy. Start simple with the basic shapes and add your own twist. Put notches in a square, put curves in the straight edges of a rectangle, give your circle a free form shape. Then reshape the fused glass by slumping or draping it on a combination of molds and other kiln furniture. There are no rules. Just make it your own and you’ll come out a winner. 

Once you integrate these design concepts into your work, you’ll be amazed how quickly your work rises to a higher level of sophistication. And in the process, thinking in a broader scope will open the door to all new, exciting possibilities.

Happy Fusing!

Lisa

Follow my blog for weekly inspiration sent to your inbox! 

The content of this post is an excerpt from my video Breaking Through-Making Exhibition Quality Art.

NEW Webinar

DCF 1.0

NEW Fire & Ice Webinar July 19, 2022

Hot techniques for cool projects!

NEW Fire & Ice Webinar August 4, 2022

Hot techniques for cool projects!

Get fired up for advanced design techniques that invigorate your artistic spirit. You’ve loved making all the simple projects. Now experience the thrill of breaking away from familiar shapes to create striking free-form fused glass designs. 

It’s easy! In this comprehensive webinar, I will guide you step-by-step from beginning to end. I’ll share my methods of glass selection, show how to lay out organic shaped projects for success, and offer fabrication tips for professional quality results. I’ll also demonstrate how to beautifully and safely display your sculptural artwork.   

Join me and I’ll show you how to create free form projects that ramp up the visual elegance of your work. You’ll love my easy-to-follow instruction and seeing how I create intricately detailed designs in just a few steps. You’ll be amazed by the shortcuts and construction tips I offer that result in polished works of art with a gorgeous three-dimensional flair.

Beginner, intermediate and advanced fusers alike will enjoy applying the many simple, yet effective techniques I share in this in-depth, live event. 

I include my custom firing guides, project patterns and materials list in PDF form. 

Get excited about your glass work again! Attend this inspiring event and you will leave with the burning excitement and the cool confidence to create your own striking pieces of art. You’ll be eager to break out of your comfort zone and reinvent the possibilities while taking your glass art in a new and exciting advanced design direction.   

Fused Glass Sculptures Webinar August 23, 2022

Creating striking sculptural fused glass forms is easy when you know the professional tips and tricks!

Join me in this comprehensive webinar and learn how easily you can put tried and true methods to use in unlikely ways, to create extraordinary sculptural art.

Enjoy the thrill of limitless possibilities.

In this in-depth webinar, you’ll learn pro tips and tricks for better glass cutting. See how to mix different fusible materials to make more elaborate designs.

You’ll be amazed how using standard slumping molds in unique ways can drastically improve the shape of your art.

You’ll be inspired by the innovative combination of ordinary techniques I share.

You’ll be confident to fuse glass after seeing how easy it is to load, program and fire a kiln.

Best of all, you’ll have an exclusive technical advantage with the advanced understanding of my dependable firing programs. And you’ll love the stunning three-dimensional results you can achieve by fusing all of these concepts together.

Beginner and advanced students alike will find inspiration, motivation and renewed artistic freedom from seeing the step-by-step construction of more than 5 sculptural projects in this webinar.

After this exciting webinar you’ll have the professional knowledge and increased confidence to incorporate these innovative methods in your new work.

In addition, you’ll have a working knowledge of kiln operation, custom firing guides, and a deeper understanding of sculptural glass fusing fabrication.

You’ll have the burning desire, and the cool self-confidence, to take your passion to greater heights.

Lustrous Lanterns Webinar September 1, 2022

Light up with me! Create colorful luminaries to brighten your home, office, porch, or anywhere else you’d enjoy the comforting glow of a dazzling accent light.

In this comprehensive live event, I will show you how to make 6 sparkling fused glass lanterns. You’ll learn how easily you can construct and build stunning 3-D lamps. I’ll guide you step-by-step through the many stages of construction, including pattern preparation, glass cutting, project assembly, fusing, slumping, and how to “cold fuse” the lanterns together.

You’ll also be shown how to finish the lanterns with custom, professional quality glass display bases. In addition, I’ll share how to utilize ready-made clear glass candle shelters to make fast and easy pick-me-ups. I also show several quick and simple methods for lighting your beautiful new creations. Along with detailed instruction, you’ll receive 6 full-size lantern patterns, my project-specific firing guides, and supply list.

Beginner, intermediate, and advanced glass fusers alike will love the wide variety of unique shapes and elegant new patterns,  custom designed to enrich any decor. Join me to rekindle your creative spark with lustrous lanterns designed to set your artistic imagination aglow.   

Fused Glass Sink Workshop, 4-Day, Hands-on Workshop September 13-16, 2022

You’re invited to join me for this intense workshop held in my private studio in Wesley Chapel, Florida. Class size is limited to 3. All class materials are included with the exception of full sheets of dichroic glass!

Kiln formed sinks are the hottest functional, art glass accent! In this class I’ll show you the many advanced techniques I use to make lavish basins. I’ll cover how to build large bowls, concepts for design, color selection and much more.

Students will learn how to design and cut glass for a sink that reflects their own design style. While the sink is firing, you’ll build several small, projects using a variety of advanced techniques.

You’ll learn how to load the fused glass into the sink slumping mold, how to drill and countersink the drain hole, as well as finishing techniques. In class we’ll go over kiln requirements, my project specific firing guides and helpful installation tips.

Intermediate and advanced students alike will gain valuable knowledge that they can apply immediately to push their work to an exciting, new level of sophistication. Each student will leave class with a sink, several smaller projects, process outlines, and the technical information needed to fire at home. With the professional tricks and secrets revealed, you’ll be ready to dive in and take the fused, sink plunge!

Sculptural Fused Glass, 4-Day, Hands-on Workshop, October 18-21, 2022

Register now. Class is limited to 3 students and held in my private studio in Wesley Chapel, Florida. All class materials are included.

Sculptural fused glass is the creation of three-dimensional forms that rise above a flat plane. Artists create 3-D works by using multiple methods and techniques with complete freedom of materials and process.

You’re invited to join me for this intense workshop held in my private studio in Wesley Chapel, Florida.

In this comprehensive class you’ll learn how to design, build and creatively display multiple stunning pieces of art that reflect your personal style.

You’ll push the boundaries glass imposes. You’ll use innovative approaches to design and combine multiple advanced techniques to construct original sculptural art. You’ll enjoy: the one-on-one instruction, making large scale projects, the well-equipped classroom, and the intimate class size.

Its hard-core fusing in a nurturing, relaxed environment. You’ll love the concentrated, in-depth study and creative momentum you’ll gain while actively producing nonstop, for four consecutive days. You’ll also learn how to design and build custom art glass displays that enhance your original work.

You’ll leave class with several completed sculptures, a working knowledge of kiln operation and custom project-specific firing guides. You’ll have the design confidence and hands-on experience to rise above and take your work to the next level.

This is the turning point workshop you’ve been waiting for! Let’s get fired up!

Artwear T’s by Lisa Vogt

Artwear Designed for Artists by Artists Tell them how you really feel with bold T-shirts, Eco-conscience tote bags and sassy mugs.

Artwear Eco-totes by Lisa Vogt

Artwear Mugs by Lisa Vogt

Downloadable instructional videos for every skill level.

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Creative Slumping

The term creative slumping has a broad range of potential directions. Isn’t that awesome! We have a huge array of handling techniques to feed our ever curious artistic spirit, and challenge our glass crafting skills. For me, creative slumping means taking ready-made molds and using them in ways that result in extraordinarily unique 3-dimensional forms. The great thing about this approach is that super simple ideas applied in combination often make the most exciting pieces of art.

How do you get started?

It’s about looking at your materials with fresh eyes. Because of past experience, you easily envision the outcome of using your favorite molds. But what happens if you place the fused glass on the mold in a different direction? Or maybe next time cut your glass in a different shape? Better yet, use two molds at the same time for a single project. How will that alter your results? The answers are in test pieces. 

Nothing goes to waste.

Clear glass is the least expensive glass. When I’m in the mood to experiment with creative slumping I start by planning my project shape. Then I cut that shape out of clear glass. I fuse two pieces of clear together, so I have the same thickness I would later when I transition to color glass. Then I test fire the fused glass over my mold configuration taking notes every step of the way. If my results are unexpected or undesirable I try again. Once I have the look I want, I repeat the process with color glass. I keep the clear glass samples that are successful for reference in the future. The ugly samples are broken into mosaic size pieces and used as filler in my cast projects.  

If I can’t waste glass who can? 

I do a lot of testing. I figure if I can’t afford to waste glass considering how much teaching I do, then who can? I cut the glass, fire the kilns, and make the mistakes, so you don’t have to. Plus, I’m stubborn. I like a challenge. When a project goes wrong, it becomes a personal mission to figure out how to make it right. And I love sharing my processes and giving you the information needed to be successful the first time.

That’s what my upcoming Creative Slumping webinar is all about. Showing you step-by-step how I come up with my ideas and how I execute them. Plus, I share my project specific firing guides that I’ve developed and tested to ensure your success. If that isn’t enough to convince you to join me, the projects are striking. Watching flat glass go from a lifeless single plane to a glistening, energetic sculptural work of art is amazingly satisfying.  

I hope to see you in my Creative Slumping webinar.        

Happy Fusing!

Lisa

Follow my blog for weekly inspiration sent to your inbox! 

Creative Slumping Webinar

June 2, 2022

Join me and see how thinking outside the box and using ready made molds in new ways offers numerous and exciting opportunities to produce unique forms.

I’ll challenge and motivate you to transform your ordinary projects into inspiring, sculptural pieces of art!

I’m back with my popular Webinar, Creative Slumping. In this detailed Webinar, I’ll reshape the way you slump and drape glass. See how thinking differently and using ready-made molds in new ways offers numerous and exciting opportunities to produce unique forms. You’ll also learn how to make your own graceful, free-form shaped molds from readily available materials with no laborious measuring or messy mixes needed.

But we aren’t finished there…

Taking you one step further, I’ll show you how to use these different approaches, in combination, to transform ordinary projects into inspiring, sculptural pieces of art!

Don’t miss this opportunity! Webinars are a great way to get together and share the craft we love with enthusiastic artists around the world. I hope you’ll join me!

Artwear T’s by Lisa Vogt

Artwear Designed for Artists by Artists Tell them how you really feel with bold T-shirts, Eco-conscience tote bags and sassy mugs.

Artwear Eco-totes by Lisa Vogt

Artwear Mugs by Lisa Vogt

Downloadable instructional videos for every skill level.

Posted on Leave a comment

Glass Fusing Terms

Hey glass fusers, I have exciting news. I’m working hard on a new glass fusing eBook. There’s a lot of helpful information out there on glass fusing, and I’m thankful to the skilled artists who generously share their knowledge. But I thought, wouldn’t it be great to have updated information consolidated into one big comprehensive eBook? A single all-inclusive resource guide for glass fusers of all skill levels.

The following is an excerpt from my new eBook. The complete list is more comprehensive and considerably longer. Here I included the terms students ask about most. I hope you enjoy it.   

Anneal – Oceanside 96 – 960°F (516°C): Super heating glass, like we do in a kiln, creates stress in the glass. We alleviate the stress, anneal the glass, by holding it a specific temperature for a designated amount of time. How long is determined by the size and thickness of the project. The larger the project the longer the hold time.

Note: Each family of fusing material has its own temperature range and recommended hold time. Consult the manufactures published guides for specifics.

C.O.E. – Coefficient of Expansion: This refers to the rate at which a specific family of fusing compatible materials expands and contracts when heated and cooled. Glasses must be of the same C.O.E. to be fusing “compatible”. Oceanside 96 glass is “tested compatible,” that is, it has been formulated and tested for fusing compatibility, and is thus labeled. All products with the Oceanside 96 label are compatible with each other.

Color Shift: Some glass colors will “strike” change color, usually become darker when heated. This is especially true of reds, yellows, and oranges. It’s a good idea to test-fire small pieces so you’ll know what to expect.

Drape 1175°F – 1200°F (635°C – 649°C): In this process the glass is placed over the outside of a mold and heated until it falls loosely around the mold.

Embossing: To create an impression, pattern, or design on the backside of a fused glass project by fusing the assembled project on 1/8-inch-thick (3mm) fiber paper cutouts.

Firing Cycle: The specific set of times and temperatures a given project will experience during heating, annealing, and cooling in a kiln.

Firing Guide: This is a step-by-step schedule to fire glass of a certain size and thickness to achieve a specific result. 

Hold / Soak: At certain times during the firing process we hold, also sometimes called soak, the glass at a specific temperature for a designated amount of time to get the desired results. 

Quick Cool: To open the kiln for the purpose of cooling the hot glass to prevent it from changing further. Always occurs above 1100°F (593°C) because glass is extremely sensitive to rapid temperature change below 1000°F (538°C). Also called “flash vent” or “rapid cool.”

Segments: Firing guides are carried out in steps called segments. Larger, thicker projects usually have more conservative firing guides and therefore a greater number of segments. 

Slumping Mold: Usually made of ceramic or stainless steel. Used to give the flat fused glass a 3-dimensioal shape or sculptural form. Most be primed before first use.

Soak: To hold the kiln temperature steady for a period of time. It allows the glass to slowly react to the heat and conform to the desired shape. 

Target Temperature: This is the temperature the glass will be taken to for a specific look or effect.

Thermal Shock: Glass breakage do to rapid temperature change. Glass is sensitive to temperature change between room temperature and 1000°F (538°C) during the heating and cooling phased of the firing. To prevent thermal shock, we heat the glass slowly from room temperature to 1000°F (538°C). Once the glass and kiln are above 1000°F (538°C) the glass can be heated as fast as possible to the target temperature. When the desired result is achieved, the glass can be cooled as fast as possible down to 1000°F (538°C). At that point the glass is fragile and should be cooled slowly down to room temperature. How slowly depends on the size and thickness of the project. Larger and thicker projects are fired slower than small projects. For example, a 4-inch square tile can be fired faster than a 12-inch square bowl.  

Safety First: It’s important to note that the materials like glass and supplies like shelf paper that we put inside the kiln are special high-refractory materials designed to withstand excessive heat and are purchased at your art glass supplier specifically for kiln work.

Excerpt from the resource guide: Glass Fusing Terms by Lisa Vogt

Happy Fusing!

Lisa

Follow my blog for weekly inspiration sent to your inbox! 

Creative Slumping Webinar

June 2, 2022

Join me and see how thinking outside the box and using ready made molds in new ways offers numerous and exciting opportunities to produce unique forms.

I’ll challenge and motivate you to transform your ordinary projects into inspiring, sculptural pieces of art!

I’m back with my popular Webinar, Creative Slumping. In this detailed Webinar, I’ll reshape the way you slump and drape glass. See how thinking differently and using ready-made molds in new ways offers numerous and exciting opportunities to produce unique forms. You’ll also learn how to make your own graceful, free-form shaped molds from readily available materials with no laborious measuring or messy mixes needed.

But we aren’t finished there…

Taking you one step further, I’ll show you how to use these different approaches, in combination, to transform ordinary projects into inspiring, sculptural pieces of art!

Don’t miss this opportunity! Webinars are a great way to get together and share the craft we love with enthusiastic artists around the world. I hope you’ll join me!

Artwear T’s by Lisa Vogt

Artwear Designed for Artists by Artists Tell them how you really feel with bold T-shirts, Eco-conscience tote bags and sassy mugs.

Artwear Eco-totes by Lisa Vogt

Artwear Mugs by Lisa Vogt

Downloadable instructional videos for every skill level.

Posted on Leave a comment

The Incredible & Amazing Value of Test Firings

Don’t run away screaming! I hate wasting time and throwing material away on test firings just as much as you do. Or at least I used to. But the truth is, you’ll have faster artistic growth and a more expansive set of techniques to work from, if you learn to love test firing.

Make it fun.

Envy from Advanced Glass Fusing Video

When firing a planned project, I tuck a small test piece in the kiln on the corner of the shelf. This way I have the main project to look forward to, and a bonus project to learn from.

I had a sculptural piece of art in mind for years. It was a good fit for my new video, Advanced Glass Fusing, but I didn’t know if I could pull the piece off. In my minds eye, the art curved in apposing directions. It had a strong linear pattern, accented with windows on the tips of three wings. The intricate design represented a lot of time and intense attention to detail.

Before committing to cutting the glass for the design I wanted to be sure I could create the fluid shape I wanted. I made a custom mold by draping 1” thick fiber blanket over a series of ceramic bricks and kiln posts.

The artwork would be ¼” thick. I cut a piece of double thick clear fusible glass to the size and shape of the intended art and slumped it over my custom mold. The slumped shape was close to what I envisioned. But it was too shallow and lacked dramatic flair. I made the mold steeper, giving it a more severe angle.  I also increased the hold time at my conservative slumping temperature of 1220 degrees from 20 minutes to 35 minutes. The second piece of double thick slumped beautifully. The glass had a graceful curve and broad sweeping wings.

When I assembled the intricate pieces to make the artwork I did it with confidence knowing it would be slumped in a way worthy of the effort.

That feeling of artistic freedom was empowering. It also spurred new design directions that drive me to experiment further.

Test firing is valuable on every artistic level, small scale as well as large scale.

Arctic Freeze from Advanced Glass Fusing Video

The project doesn’t have to be bold or revolutionary for you to benefit from testing a new way of construction. When making a piece that would feature a decorative element cut from a combed glass slab, I wanted to include a second pattern that reinforced my color scheme. I fired a small test of the colors I selected. Later, I used that information to create a beautifully detailed pattern blank. The blank was the perfect complement to the combed component.

Fire Storm from Fun & Fanciful Fusing Video

Before making Fire Storm for my new video, Fun & Fanciful Fusing I test fired tiny bits of glass. I wanted to determine which temperature would give me the best shiny edge quality, while retaining the irregular shapes I liked. As it turned out, I preferred the look of the pieces after being fired to a slump temperature, not the fire polish temperature.

Even failed tests have value.

A student in one of my classes made a project where they stacked a transparent amber glass on a transparent purple glass. The project was UGLY! But they created a beautiful, Winnie the Pooh brown. Now as a finished project, it was awful. But as a learning tool it was priceless. We now know how to make a rich, warm brown color on demand.

The takeaway is this; test firing is not a waste of time or materials. It’s an investment in the future of your artistic growth.

Happy Fusing!

Lisa

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Fire & Ice

Advanced Glass Fusing 4-Day, Hands-on Workshop May 24-27, 2022

Only 1 Seat Left

Make Fire & Ice!

Join me and take your glass fusing to the next level!

In this class, you will push the boundaries art glass imposes. Students will explore innovative approaches to design and combine multiple advanced techniques to construct original art that reflects their own personal style. You’ll enjoy: the one-on-one instruction, making multifaceted projects, the well-equipped classroom, and the intimate class size.

You’ll love the concentrated, in-depth study and creative momentum you’ll gain while actively producing, nonstop for four consecutive days. You’ll leave class with a working knowledge of kiln operation, custom project specific firing guides, and the inspiration you’ve been craving to go bigger and do more elaborate works of fused glass art!

Creative Slumping Webinar

June 2, 2022

Join me and see how thinking outside the box and using ready made molds in new ways offers numerous and exciting opportunities to produce unique forms.

I’ll challenge and motivate you to transform your ordinary projects into inspiring, sculptural pieces of art!

I’m back with my popular Webinar, Creative Slumping. In this detailed Webinar, I’ll reshape the way you slump and drape glass. See how thinking differently and using ready-made molds in new ways offers numerous and exciting opportunities to produce unique forms. You’ll also learn how to make your own graceful, free-form shaped molds from readily available materials with no laborious measuring or messy mixes needed.

But we aren’t finished there…

Taking you one step further, I’ll show you how to use these different approaches, in combination, to transform ordinary projects into inspiring, sculptural pieces of art!

Don’t miss this opportunity! Webinars are a great way to get together and share the craft we love with enthusiastic artists around the world. I hope you’ll join me!

Artwear T’s by Lisa Vogt

Artwear Designed for Artists by Artists Tell them how you really feel with bold T-shirts, Eco-conscience tote bags and sassy mugs.

Artwear Eco-totes by Lisa Vogt

Artwear Mugs by Lisa Vogt

Downloadable instructional videos for every skill level.