Favorable (glass) reactions
November 22, 2011

If you mix frit colors–as all pate de verre and frit painting artists do with abandon–you quickly learn about reactivity between colored glasses. Try warming up chill BE Salmon Pink with a little BE Medium Amber, and the resulting sludgy grey-brown will stick in your mind forever.
Or so I thought. At a beginning casting workshop recently, one of my students complained that it was tough to simply remember what reacted with which. Or worse, when they combined glasses from two manufacturers, they couldn’t find any reactivity info at all, which apparently resulted in some unpleasant surprises.
I gave them some rules of thumb I go by when I don’t have access to a reactivity chart and/or have no time to check. [Read more]
Pate de verre in a hurry, Part I
October 29, 2011
How do you give non-casters a taste of pate de verre-making..in less than four hours?
That was the assignment, anyway. It was the Portland chapter’s turn to host the Oregon Glass Guild’s annual state meeting, and we wanted to do something a bit special.
We decided on a theme of Stretch Your Wings, and gave it multiple meanings. First, we meant “stretch your wings by reaching out to the community.” Instead of focusing on personal enrichment, this time we’d make art for the community, a glass quilt to be installed in a local hospital. Everyone who came would make at least one 6×6 inch tile for the quilt.
Coldworking Glass without Machines (book)
July 7, 2011
Lemme borrow a writer’s proverb for a sec:
I hate coldworking. I love having coldworked. More particularly, I love having coldworked by hand.*
I’ve so far found nothing to match the incredible, silky finish you get with hand-coldworking a piece of glass, so I was really interested in Paul Tarlow’s new book, Coldworking Glass without Machines: A complete guide to creating better fused, lampworked & blown glass artwork without spending a small fortune on big equipment.
Fusathon 2011
May 24, 2011
We came, we fused, we laughed.
That pretty much sums up this year’s Fusathon which, when you think about it, means a pretty good time was had by all. Fusathons, for those of you who don’t know, are the Oregon Glass Guild‘s annual charitable fusing parties.
One Saturday each spring, Uroboros opens its glass factory to Portland chapter members for OUR Fusathon. We eat, joke, take factory tours, buy glass (at really nice prices)…but mostly we make plates and bowls, to be sold over the fourth of July at the Portland Blues Festival, and 100 percent of the proceeds go to the Oregon Food Bank.
Uroboros kindly precuts a bunch of clear glass blanks and sets out tons of glass–90 and 96–for us to play with. We bring our tools, and any stray components we might want to use up, and for the next four hours or so we create.
They fuse the blanks flat for us in their honkin’ great kilns, and later on we’ll pick up the flat pieces, coldwork the edges a bit and slump them into plate and bowl molds in member’s own kilns. (This year, Aquila Glass has graciously volunteered to do the slumping.)
There’s a competition for the best work (a Uroboros gift certificate), members clean out their studios and donate leftover work that will also be sold at the festival. But like I said, we mostly just make glass and have fun.
It’s a little daunting, being confronted with a bunch of bare glass and instructions to “make a plate.” I must admit I’m usually more interested in seeing what everyone else is doing than in actually working on my own creations, so I tend to do something with streaky glass–a treat, since I almost never use it in my own work–and then focus on taking pics of artists at work.
It’s been interesting to see members’ work evolve at Fusathon, year after year. These are “relax and have fun,” “try something new” pieces, but after a year or two you start noticing how clearly a top artist’s voice comes through, even then.
Even more fun is watching the quality of the work grow, year to year. There was definitely a strong mosaics influence this year, and quite a bit more adventuring.
Take a look at what we put into the kiln (apologies where the photos aren’t great–or the design is covered with a coating of clear frit. If you’d seen them BEFORE the frit, you mighta been impressed):
Touchable glass
April 18, 2011

Glass may be one of the most untouchable of artforms–its strong relationship with light and color makes it extremely visual anyway, and its fragility and razor-edged fractures most likely reinforce the “eyes only” notion.
But what if “eyes-only” isn’t an option? Why can’t artists create glass for the visually impaired?
This is something ELSE I’m learning from this little informal teaching stuff I’ve been doing. (I gotta wonder if the whole reason you teach is to be able to learn more.)
Playing in the sandbox
April 11, 2011
Fun little project that’s worth investigating, one which started with my urgent need for about 600 glass cabochons.
I wanted to get as many cabs as possible out of scrap, so I began cutting up dozens of failed projects and refiring the pieces. Sometimes the results were spectacular, sometimes not…but my absolute favorites came from boxcasting experiments gone wrong.
I’d been experimenting with pate de verre boxmaking methods to get the look of PdV without all the just-under-the-surface bubbles, which make it difficult to carve into the glass without creating pinholes. [Read more]
Murrini cane in a kiln: Sandwiches, Part I
March 2, 2011

What’s the difference between a murrini cane and a pattern bar?*
Beats me; I’ve only found two: Pattern bar typically isn’t stretched or compressed to reduce the pattern (and incidentally increase the number of murrini) and the final slices are generally bigger than typical murrini. In fact, for many types of murrini you start with a huge pattern bar, then heat and stretch and compress it until it becomes…murrini cane.
BTW, this is part of a series that I *still* haven’t finished–never knew there were so many ways to make murrini in a kiln. Here’s the rest of the series:
- Murrini cane in a kiln: Jellyrolls
- Kilnformer’s murrini you can buy
- Murrini cane in a kiln: The rod pod
- Kinda like peanuts
Kilnformer’s murrini (you can buy)
January 20, 2011
I’ve been exploring all the different ways to make murrini cane in a kiln, and having a lot of fun with it. Check out some of these (amazingly long-winded) posts for step-by-step instructions:
- Murrini cane in a kiln: Sandwiches, Part I
- Murrini cane in a kiln: Jellyrolls
- Murrini cane in a kiln: The rod pod
- Kinda like peanuts
But I gotta tell you, it’s a lot of work and it’s not cheap. So what do you do if you want good-looking, kiln-fusing murrini that you don’t have to make yourself?
Murrini cane in a kiln: Jellyrolls
January 4, 2011
Last time around, I talked about murrini cane, and the most obvious way to make them in the kiln: A murrini rod mold, AKA “rodpod.”
As I’ve said, I’m not pretending that anything I discuss here is my invention or brand new stuff: Murrini-making is one of the oldest glassmaking techniques. This is just a compendium of methods I use to make murrini in a kiln. You’re welcome to try these; please comment if you have other/better ways of doing this.
Murrini molds certainly can make some beautiful murrini, but it’s a grab-bag affair. The size of your cane is limited to the dimensions of the groove in the mold, rarely more than a foot in length, so the number of murrini per cane is relatively small.
Worse, because the components are harder to keep in place in these molds, canes aren’t particularly reproducible unless you stick with squarish designs. Gravity tends to smoosh everything into a squarish loaf shape, flattening out any round or symmetrical patterns. Stuff may or may not slide around, so it can be difficult to exactly reproduce the same pattern across multiple cane. If I need to cover two or three square feet with identical murrini, I make two or three times what I need and match it by hand; I usually wind up with two or three totally unusable cane from a rodpod.
BTW, this is part of a series that I *still* haven’t finished–never knew there were so many ways to make murrini in a kiln. Here’s the rest of the series:
- Murrini cane in a kiln: Sandwiches, Part I
- Kilnformer’s murrini you can buy
- Murrini cane in a kiln: The rod pod
- Kinda like peanuts
Murrini cane in a kiln: The rod mold
December 22, 2010
FINALLY I’m back in the studio after a seven-month hiatus. I figured I’d start with something easy: Making components for bigger sculptures. Then it turned into this bigger thing, i.e., surveying methods for making murrini cane in a kiln. The whole thing is ‘way too long to publish in a single post, so I’ll break this up into sections. Sorry about that.
I’ve got some ideas for cast, figurative sculptures and vessels that incorporate murrini, bronze and other things. I’m not entirely sure where this is going, i.e., I want to play around a lot before I finalize the series design, so I need a LOT of murrini to experiment with…and I set out to make a bunch.
BTW, this is part of a series that I *still* haven’t finished–never knew there were so many ways to make murrini in a kiln. Here’s the rest of the series:







