Monthly Tech-Tip | No tracking! No ads! |
-Size of mixing container: 1L per 1000g of plaster.
-To determine the amount of plaster and water needed our normal process is to counterbalance the mold and fill it with water to get the cc volume, in this case 2000. Then use the glazy.org plaster calculator for the amounts of plaster and water needed. But this time I just used the gram/weight as the amount of plaster, 2000g. I derived the water, 1400g, according to the 70/100 ratio recommended by USG (it was 200g less plaster and was sufficient).
-Using a 4-minute soak and a good propeller mixer there is no need to sprinkle the plaster in.
-Make sure no plaster is hanging on sides of the mixing container after soak.
-Mix with a whirlpool shallow enough that it does not suck air but deep enough that it is pulling bubbles up to the surface.
-Make sure the mold is strong enough not to split at the bottom and the right shape not to bow out. 3D print it so the artifacts are at the top. For PLA mold soap is not normally needed.
-Pour it into the mold in a steady stream that does not pull in bubbles.
URLs |
https://plaster.glazy.org/
Glazy Plaster Calculator Choose the shape, enter the measurements in cm or inches, choose type of plaster and consistency. |
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