Delft clay casting demonstration

In January 2020, John Huddleston gave a demonstration of how to cast silver using the delft clay method.  The club has the equipment for this.  John used a nutmeg as the item to reproduce and did two castings to allow more people to watch closely.

Starting the melt - using two torches to get the metal heated quickly. Two casts ready

Close up view

Just after the first pour

The first pour staring to cool

The audience at a safe distance

The two castings, the debris and the crucible and remaining silver

Starting to retrieve the clay that can be reused

The original nutmeg and the two castings

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With the first pour, John didn’t keep the torch on the crucible whilst pouring and the metal did cool a little so that the mould didn’t fill properly.  The second one was fine.  The first one will make a lighter pendant at 33g, whereas the full nut is 44g.
With thanks to Sharon Cairns and Lynne Ford for the action images.