6" Round Bottom Optic Mold
Photo: Hobbyglass (Hegan Glassworks)

Molds & Stamps

6" Round Bottom Optic Mold

by Hegan Glassworks (Hobbyglass) · Ukiah, California, USA

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A 6" round-bottom bronze optic mold with triangular ribs. You don't have to cut off the bottom of the bubble after blowing, which saves time in production.

Furnace / hot shop

Ribs
12, 14, 16, 18, 20, or 24
Height
6"
Top
About 4" across, 3" opening
Material
Silicon bronze, investment cast

Where to buy

Links last checked September 30, 2026.

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