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This mold is for a Medalta Potteries ball pitcher having a closed top with a teardrop-shaped spout (lower right). 3D printing makes it possible to create a pour spout that inserts perfectly into the angled hole, thus the plaster mold itself does not need a spare. The size of the pour spout reservoir and the degree of insert can tuned so that when the level drops to the bottom it is ready to pour and the pour hole is perfectly formed.
| Glossary |
Pour Spout
Plaster molds intended for slip casting have a spare at the top to act as a reservoir. This enables overfilling the mold to accommodate the dropping slurry level. 3D-printed spouts make a spare unnecessary. |
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