Plaster coasters

IntroI love to design objects which I can reproduce x amount of times. And 3D printed molds are perfect for this kind of project. DesignHere you can see products that you can use in three different ways:As a MOLD for casting ( in plaster or concrete or else ) little coastersAs a COASTERDirectly 3D Print a coasterYou choose which of two you want to use.Print SettingsSame old standard presets. These models are very easy to print and they don't require particular settings. Just bump the quality if you want something more detailed.Plaster CastingI don't have a lot of experience in casting plaster and normally do this by trial and error. Probably a lot of you here will be much more experienced than me!Anyway, to prep your mold for casting you have to find:Plaster / or any other material such as concrete to cast inside the mold.Mold release / I normally use dish soap or some kind of oil ( whatever you find in your kitchen is fine and please if you know a better way let me know )Spraypaint /