Best 3D Printers for jewelry making

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If you want to burn them out, it's critical to use a material that doesn't produce ash residues in your mold, which will show up as holes in your castings.

Check it out. Early castings from the Visijet FTX Green material from the Projet 1200 3D Printer before we figured out the proper procedure. This is what you don't want.

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The last picture is a 15mm sphere put into the oven by itself, no flask, no investment. No reaction until 800 degrees and then boom. The lower part is the sphere and the bubble on top is the heated resin from the inside. This is what happens during the casting process. The resin expands as it heats, cracks the investment, and leaves behind this coal-like crud inside which ruin your castings.