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PLA is the most common filament used in consumer 3D printers. Because this is just a quick trial slip casting mold it is practical to print two PLA case molds (lower right) with vertical sides (it is impossible to remove the plaster mold from these without significant damage to the corners. But this is not a problem, PLA filament has a very low melting point so even hot water can soften it - I use a propane torch to heat them (very carefully of course) and they peel off easily. Making these confirms how accurate 3D printers are nowadays - the plaster mold halves mate precisely. Notice there are no natches, they are not needed for prototyping (lining up the outer edges perfectly positions the pieces). And there is no spare, we use a pour spout instead.
The dark one is M370C with 10% added raw umber. The other is M370C. Both are glazed using GA6-B Alberta Slip amber transparent - the color difference is entirely a product of the difference in color of the fired clay body. The wood-grain texture is the artifact of 3D-printing the case mold flat rather than upright.
Projects |
Beer Bottle Master Mold via 3D Printing
A project that took several years of failures and blind allies and is finally coming together - so much simpler than expected! |
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