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Cast in Stone

The Dome is Done

Yesterday Justin and Rebecca helped me to cast the first layer of the top of the furnace - an 80mm layer of 1800 refractory cast in a former made of polystyrene. Making the former took me a week but the result was effective, especially joining the lower and upper parts together with hardboard and screws. This was much quicker to fit than the last time I made a furnace which should mean the dome holds together better. The big change with this furnace is the steel ring that should allow me to lift the top off in a few years when I need to replace the crucible. That will save lots of money and time.



 

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