Amanda Simmons and Bob Leatherbarrow - Deep Forms - 9th, 16th, 23rd September 2026

Amanda Simmons and Bob Leatherbarrow - Deep Forms - 9th, 16th, 23rd September 2026

Name: Amanda Simmons and Bob Leatherbarrow - Deep Forms - 9th, 16th, 23rd September 2026
Brand: Glass School
SKU: 3781732
Price: 200.00 GBP
Availability: InStock

This is a live online class, taught over Zoom.

Learn how to advance your vessel making skills and create dramatic deep forms in this collaborative masterclass with Bob Leatherbarrow and Amanda Simmons. Together, they will share techniques, approaches, and strategies to help take your kiln-formed glass work to new depths!

£200.00 GBP

Price inclusive of tax.
For countries exempt from paying UK and EU taxes, the correct price will be calculated at checkout upon entering a valid billing address.

What you will learn

The course will explore the properties of glass, how to design and construct blanks, how to make your own moulds, using deep-form step moulds, and experiment with creative methods for distorting and shaping forms. Examples from both artists' practices will be used to illustrate key concepts, and weekly projects will provide opportunities to apply the techniques covered.

Successfully achieving deep shapes is one of the greatest challenges in kiln-formed glass. As forms become deeper, the technical demands increase, requiring careful planning, an understanding of glass behaviour, and thoughtful mould design. This masterclass will equip you with the knowledge and confidence to tackle these challenges and expand the possibilities of your vessel-making practice.

This workshop is intended for artists who have deep-chambered kilns, but those without can also adapt projects for their own kilns, learning a lot about kilns, schedules, and the behaviour of glass.

You can view more of Bob's work here: www.leatherbarrowglass.com

You can view more of Amanda's work here: www.amandasimmons.co.uk

Course Summary

Successfully achieving deep shapes is one of the greatest challenges in kiln-formed glass; the deeper the shape the greater the challenge.

Learn four approaches to surmount this challenge by:

Understanding how glass behaves during slumping; designing reliable custom slumping schedules
Demystifying how best to use drop-out and deep-form step moulds
Developing simple and economic ways to create distinctive shapes by making your own moulds.
Get ready to think outside the box but inside the kiln!

Workshop Outcomes

Slumped Glass Works
Drop Ring Vessels
New Knowledge of Slumping schedules

Session Times

• Wednesday 9th September 2026 - 5:30 pm- 7:30 pm UK time (1.5 hours)
• Wednesday 16th September 2025 - 5:30 pm- 7:30 pm UK time (1.5 hours)
• Wednesday 23rd September 2025 - 5:30 pm- 7:30 pm UK time (1.5 hours)

How it works

The course is made up of live and interactive online sessions using the Zoom platform. You will find the zoom link via the week chapters in the navigation panel.
The artist will give a step-by-step tutorial with demonstrations, and you will have ample opportunity to ask them questions during the live class
Each week they will demonstrate a technique for you to try between sessions
A member of the Glass School team will also be in the Zoom class to assist you
Mix with the artist and other students on our dedicated community page, open for the duration of the course. Then join our exclusive Glass School UK Online Glass Community Facebook group to continue to mix with those who have attended any of our online masterclasses
A materials list is provided in the course navigation panel, so you can purchase what you need to create your pieces during the course. You don’t need absolutely everything on this list to be successful, the artist will
discuss different ways to reach our technical goals.

All live online masterclass sessions are recorded, so if you cannot attend the live sessions or access your studio at certain times, you can watch the sessions back. These will be available for up to four weeks after the final session. Recordings cannot be downloaded or shared and by joining you agree to being recorded.

These recordings will be available in the course navigation panel.

What to prepare

• You will need a computer, tablet, or phone with a camera and microphone in order to join the online classroom. If you are unfamiliar with using Zoom then please take some time to look at our guide, available in the navigation panel.
• You should have a reliable internet connection, fast enough to make video calls or stream videos
• Please read the Student Participation Agreement
• Ensure that you have checked the materials list and purchased any materials you may require
• A pen and paper to take any notes.
• We restrict the class size to 30 people
• We teach using Bullseye Glass (CoE90)

Inclusivity and refunds

We are committed to maintaining a respectful community where all our students can learn and develop their full potential, within a safe environment.

If you have a disability or any specific requirements, please do not hesitate to contact us prior to your lesson so we can accommodate you.

Cancellations up to 2 weeks before the course receive a 90% refund, after that date, a 50% refund will be given up to one week prior to the course, and no refund is given for cancellations after this time. In order to keep class costs low for all, we make no exceptions to this policy. In order to cancel your place on the course please contact info@glass-school.co.uk

Download Materials List

Amanda Simmons and Bob Leatherbarrow - Deep Forms - 9th, 16th, 23rd September 2026

£200.00 GBP

Amanda Simmons

Amanda makes kilnformed glass objects, playing with gravity in the kiln. Manipulating mass, heat, colour and time, she creates complex, elusive work that has intense colour and pattern which reacts to the light it is placed in. She uses opaque glass powders to construct her work because of its varying translucency as the form elongates in the kiln, then finishes the kiln fired pieces using many coldworking processes to shape and mark the glass including sandblasting, hand lapping and diamond point and wheel engraving.

Amanda graduated from Central St Martin’s School of Art & Design in London with Distinction studying Postgraduate Certificate in Glass & Architecture, before relocating to Dumfries & Galloway, Scotland in 2005. She has exhibited in many high profile national and international exhibitions.

Bob Leatherbarrow

Bob has been creating with kilnformed glass for over 35 years and is known for innovative techniques, textures and colour palettes using glass powders. His glass bowls and sculptures explore the subtle hues and delicate beauty of naturally occurring textures and encourage the viewer to ponder their origin.

Bob is dedicated to education and is a popular guest instructor as well as having written e-books on textured powders, firing schedules, and design.

He lives in the artistic community of Salt Spring Island, Canada.

Amanda Simmons

Bob Leatherbarrow

Amanda Simmons and Bob Leatherbarrow - Deep Forms - 9th, 16th, 23rd September 2026

Price inclusive of tax.
For countries exempt from paying UK and EU taxes, the correct price will be calculated at checkout upon entering a valid billing address.

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Customer Reviews

Amanda Simmons and Bob Leatherbarrow - Deep Forms - 9th, 16th, 23rd September 2026

Price inclusive of tax. For countries exempt from paying UK and EU taxes, the correct price will be calculated at checkout upon entering a valid billing address.

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Customer Reviews

Price inclusive of tax.
For countries exempt from paying UK and EU taxes, the correct price will be calculated at checkout upon entering a valid billing address.