Metals & making
Casting weight: calculating the metal from wax or resin
The one formula behind every casting weight chart, worked examples for gold, silver and platinum, and how much to add for sprues and the button.
5 Oct 2026
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Guides and interactive explainers on gemstones, diamonds, metals and making jewellery, written for people in the trade and checked against named sources.
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Metals & making
CAD and 3D printing: from first file to finished casting
How digital design and 3D printing fit into making jewellery today, what the software and printers do, and how to work with a caster from your first file.
5 Oct 2026