I will be making a measuring cube out of bronze using the lost PLA method. I started this project by 3d printing a model in a plastic called PLA. Then I coated the model 10 times with a ceramic material called Suspendaslurry. After the ceramic shell was completely dry I placed it in my kiln and melted out the PLA plastic. At 1500 degrees Fahrenheit the ceramic shell becomes vitrified, turning into a ceramic that can withstand the heat of molten bronze. I melted the bronze in my homemade keg foundry furnace and then poured the liquid metal into the ceramic shell mold. This is similar to the lost wax casting process.

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Pyramid A1.1 3d printer https://amzn.to/3wfg2t3
Overture 3d printer filament https://amzn.to/2UqwwRC

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The links above are affiliate links. This means that, at zero cost to you, I will earn an affiliate commission if you click through the link and finalize a purchase.