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Hi I'm not sure if this is the right section... but here goes I'm interested in making some dental plaster bases for some of my upcoming minis. I will be making some basic patterns (ie cobblestone, dungeon floor, dirt) and then making molds - since my sister is a dentist she will be assisting in making molds (using the mold making stuff from dentures etc), so they will be about 10cm square max. From peoples experience what is the maximum size a plaster base can be before it starts becoming structurally weak? For making slightly more complex bases, what are the limitations o