




An online community for glass lovers, worldwide
GlassPosi is a small membership community for people who love glass, anywhere in the world. You belong here as a maker — not a spectator. It's built in Japan, and made readable in your language.
Free during pre-open. Membership opens in August 2026.
Likely a world first
Tell it your glass, thickness, and what you're making — and it designs a full firing schedule for you, with the temperature curve drawn out. As far as we know, no other tool does this. Stop guessing at ramps and holds; start from a schedule and adjust.
Members get the full generator. Take a look inside first.

Four ways to take part

Learn
Full recorded lectures — available in English — plus a living glossary and a searchable glass catalog. Take real techniques and vocabulary one step at a time.

Make
Keep a private studio journal of every piece — the glass you used, firing curves, photos in progress — and deepen your practice with hints and notes.

Talk
Bring a struggle to “Rei listens” and be accompanied — not handed an answer, but walked alongside. Trade what you're thinking and trying in meetings and notes.

Gather
Connect with glass lovers from all over the world. Meet the makers, see work born here in the shared photos — one person's making becomes everyone's hint.
Made in Japanese, readable in yours
The glossary, the guides, the members' posts — read them translated into eight languages, on demand. Join a real practice without waiting for someone to translate it for you.
Your navigator

Rei Chikaoka近岡 令
Glass artist · Founder of STUDIO POSI
I started by simply playing with glass, and kept making work out of the traces of drawing out what the material can do. Here, I walk alongside your making rather than hand you answers.
Work and full profile at studioposi.com
Registration is free while we're in pre-open. Paid membership opens in August 2026 — until then, you can look around and take part for free.
New here? Read the getting-started guide.
Questions before you join? Contact us