More craftsmanship…


At this time three years ago I’d just finished cutting 200 mirrored glass stars for table decorations at MASS MoCA‘s annual NY City gala. A few months earlier I’d cut 230 much, much bigger ones -some as big as 4ft across- in 1/4″ thick mirror for Sanford Biggers exhibit “The Cartographer’s Conundrum“. I cut glass by hand. No waterjet, no bandsaw, just a glass cutter, a sturdy pair of running pliers, and my hands.

It was a happy week of pure craftsmanship. I needed to work carefully and sensitively with the glass, paying careful attention to the way it wanted to break. I was observing how it responded to my pressure (1/4″ plate glass is very different to 1/8″, and different yet again to hand-made coloured glasses), and how the precise position of my pliers would result in a successful break (or not!).

The 1/4″ mirror arrived in 5ft x 10ft sheets and I had to cut it right there on the A-frame before lifting sections with suction cups onto my work table. I had the help of a young intern to help lift the mirror, and later take back the sharp edges with a carborundum stone. Mostly, he watched, fascinated.

I was using all my old, familar, glasscutting methods, my knowledge of the material and how it behaves, and pushing the craft of glasscutting to it’s outer boundaries. It was a real delight for a very small person like me to carve into this strong, dense, yet delicate material, and create pile after pile of five-pointed stars.

Hundreds of 5-pointed mirroed glass stars hand cut by Debora Coombs stained glass artist  Hundreds of 5-pointed mirroed glass stars hand cut by Debora Coombs stained glass artist

Hundreds of 5-pointed mirroed glass stars hand cut by Debora Coombs stained glass artist Hundreds of 5-pointed mirroed glass stars hand cut by Debora Coombs stained glass artist Hundreds of 5-pointed mirroed glass stars hand cut by Debora Coombs stained glass artist

Here’s a final photo, of the Cartographer’s Conundrum. Note that the colored light you see in the gallery is not stained glass. They are colourful plaxi-glass pews made by Richard Criddle and his crew, the fabulous art installation and fabrication team at MASS MoCA (in 2 mins).

As part of his aesthetic and artistic message, Sanford Biggers smashed around 60% of the stars with a huge iron pole. In the light of the pride I’d taken in my craftsmanship, and the sense of achievement I’d gained from cutting the stars whole, it was a curious thing to witness.

Sanford Biggers at MASS MoCA. Handcut mirrored glass stars by Debora Coombs

self-leveling floor compound

Why teach craftsmanship?

Because some things just can’t be learned from YouTube.

Richard and I were reminded of this last week as we wrestled with self-leveling cement for a bathroom floor. We have 15 years of art school education between us, and a broad range of practical skills. Richard has been MASS MoCA‘s Director of Fabrication and Art Installation since the museum opened in 1999, and responsible for building hundreds of extraordinary works of art in a wide variety of materials. But this tiny, 5ft x 8ft bathroom floor was threatening to get the better of us.

self-leveling floor compound second attempt

We’d watched the videos, pored over instructions, and measured everything precisely, but this darn cement turned out to have a mind of it’s own. Plus, a fierce surface tension that made it cure into pahoehoe-like slabs with lightning speed. Self-clumping would be a better description, like kitty litter. Figuring out how to level this lava-like eruption forced me to become more intimate than usual with the subtle topography of our bathroom floor. Eventually, we sort-of won, and the floor was sort-of leveled.

Battle-weary, as we cleaned our tools and tidied my studio for a week of glasspainting, it hit me: I teach in order to save others from this same experience: the demoralizing frustration that results from such a huge gap between what you want or expect, and what the mixture or material appears able to do.

Just a few days earlier, Annie O’Brien had come from Cornwall in England for private tuition. She had heard about my methods, downloaded my Notes for Students and painted glass with my mixture, but had yet to achieve the results she saw in my videos. Annie teaches stained glass at Penzance School of Art and, besides developing her own work, wanted to help her students paint glass more fluently.

Reviewing Annie’s workshop in the light of my floor-leveling struggles prompted me to recall comments such as “Oh, I read about that in so-and-so’s book but it didn’t/I couldn’t/it wasn’t clear…”. Then, as I took Annie through my basic procedures, I began to hear “Oh, this is so different than I’ve been getting… “. Or, as she learned to recognize the correct consistency and viscosity “This is way easier, and so much more fun.”

And this is my point: all the YouTube videos out there cannot substitute for a few hours of hands-on time with the right person.

And so, last week, four more artists drove across the country to take a 5-day workshop, Glasspainting For Artists, in my studio. Marianne Parr from Athens, Georgia, was working on developing a free and more personal style of glass painting and figuring out where she wants to go as an artist. Daniel White of Cain White Art Glass, Virginia came to learn how to create more expressive tracing and textural effects for commissioned work. Carol Slovikosky, who has taken several design and painting workshops with me, was expanding her figurative work to include canine portraits, and Brenda Benson came to the workshop to learn how to add pattern to her sculptural pieces.

photo 1 photo 5

I always aim to teach the individual, and this is easier with small groups. As I figure out each artist’s needs and goals I can be flexible with the curriculum, address specific requests, and encourage exploration. Last week I gave slide presentations that included aspects of stained glass design, including the positioning of support bars, which spurred a spontaneous session I dubbed “Sacred Geometry 101”. Then, since both Brenda and Daniel wanted to use my mixture for figurative work, they chose to paint faces during the workshop. Brenda, whose tuition fees were covered largely by the SGAA’s MalDeb Fund, went on to figure out the precise viscosity of paint needed to print hand-carved linoleum.

My next student, LeaAnn Cogswell, is an accomplished sculptor and painter who has yet to figure out how to use glasspaint as beautifully as she does clay. She has remarkable drawing skills, masses of experience and solid art training. The Stained Glass Association of America awarded LeaAnn a Dorothy L. Maddy Scholarship to come and study with me. With a few days of one-to-one, hands-on instruction, I’m confident that LeaAnn will swiftly become an excellent glass painter.

stained glass painting workshop with Debora Coombsphoto 3

September glasspainting workshop in Vermont


I’ll be teaching a 5-Day Stained Glass Painting Workshop Sept 14-18th at my studio in southern Vermont. We’re 3hrs drive from Boston, 4hrs from New York City and 10 mins from the border with western Massachusetts. One place is definitely still available.

Participants will learn how to mix, thin, and apply kiln-fired lead-free paints with an inexpensive, non-toxic food additive, plus techniques that enable lively, expressive trace-lines, printed effects using lace, plastic and rubber tools, and how to create faux textures such as stone, wood, fur and fabric. We start with group exercises that explore innovative methods of application, and then move swiftly on to individual projects. Students who wish may work on self-portraits.

My glasspainting techniques make it easy to achieve beautiful results, even for beginners. These intensive workshop are also really helpful for experienced glasspainters who want to develop greater ease and fluency.

Class size is small (max. 6) with lots of individual attention. Tuition $860, includes lunch each day. More about hours, lodgings, fees and scholarships here. Watch videos of real-time glasspainting demonstrations, on vimeo, read blog posts about my workshops at Arrowmont School of Arts & Crafts, Williams College and Vermont or photos of past student work on my website. Scroll through the teaching folder via little grey arrows at bottom of screen.

Happy glasspainting to all my stained glass friends, but especially, to past students.

Spreading the Word – Worldwide


This is my class from last week’s workshop in Oregon, and my most recent opportunity to spread the word. It’s been exactly 10 years since I started teaching glasspainting with propylene glycol (read the story here). I’m proud to see my techniques adopted worldwide now, with a huge following in 45 different countries.

It’s especially rewarding to see how many artists have adopted my methods and made them their own. In particular I’d like to thank Williams and Byrne whose generous sharing of my video three years ago brought several new students to study with me. Soon after they published this wonderfully helpful comparison between oil and propylene glycol as part of a multi-layering technique, which I highly recommend.

Coming soon, a dropbox folder of last week’s workshop. In the meantime, check out my January 2015 Williams College student’s work – all phenomenal first time glasspainters, or professional development workshops, this info folder on my website or teaching resources page.

Portland Oregon: Monday’s talk at St Mary’s Cathedral on stained glass, 3pm

I am so happy to be in Portland, Oregon staying with my friend, Jocelyn Bates O’Brien, one of the architects I worked with on the remodeling of St Mary’s Cathedral 20 years ago. Jocelyn was part of the committee that selected me to design and paint over 1,000 sq ft of figurative stained glass and an etched glass screen. We were still living in London at the time, so the project was life-changing.

view thru screen

I’ll be bringing my students from next week’s workshop in Newburg, Oregon, and answering questions about design and glasspainting techniques.

If you live nearby, you’re welcome to come and join us at St Mary’s Cathedral at 3pm this coming Monday, June 15th. The address is 1716 NW Davis St, Portland, OR 97209

Or, if you’re far away, you can visit the cathedral virtually here via an online self-guided tour, or scroll through a folder of images of the stained glass at St Mary’s on my site.

The Mohawk, last window installed

My last window was just installed at the Mohawk Tavern in North Adams, Massachusetts.


The developer, Dave Moresi, and his team – especially Chris Loyd, have done a beautiful job of restoring the building and I’m proud to have played a part. Besides the new signage and Luxfer prisms, I repaired light fixtures, cut recycled glass for doors and lanterns, and spent most of yesterday soldering seams on the zinc bar top.

The Mohawk is an important piece of local history and right opposite MASS MoCA, so of course, we’ll be patrons. It will re-open on June 19th, in time for the Solid Sound Festival when we’ll be jostling for elbow room at the bar with 8,000 or more Wilco fans.

Richard is super-happy. He has wanted a decent, English-style local pub right next to where he works since we arrived in 1996. Here’s a 2 minute video where you see him briefly, plus some of the extraordinary work he has done at MASS MoCA. It explains why, despite the pub-less-ness, we stayed.


Lunch of a Lifetime

I was giddy with the delight of meeting Sir Roger Penrose yesterday at a small luncheon for artists and scientists at Yale University. His extraordinary tiling patterns have obsessed and inspired me since I was a student at the Royal College of Art in the 1980’s. Recently I’ve been experimenting with 3D tilings using Baroque decoration to enforce Penrose’s mathematical rules. I took this model with me yesterday and had a wonderful time talking with others who are obsessed with his work.


I also took the very last panel in my Menfolk series to show Dr. Penrose. It shows him looking down at a student through one of his aperiodic tilings, a string of Superman images, and a copy of Grunbaum and Shepherds textbook, the definitive taxonomy of tilings.

PENROSEwindow   IMG_3049

Thanks to Laura Clarke and Site Projects Inc (who organized the events), to the Physics Dept. at Yale (for lunch), and my friends Lisa Nilsson and Denise Markonish (who tipped serendipity for me).