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The 3D design of this handle mold was challenging because of the lack of a defining edge to guide cutting it, at leather hard stage, to accurately fit against the body of the bellied shape (a Medalta ball pitcher).
Center: I solved that problem by creating 2mm pipe along the path defined by the join between the handle and the spares.
Upper left: It has been 3D printed using PLA filament. The walls are only 0.8mm thick so printing is fast. The low profile means there is no bulging from the weight of the plaster. The clips and embeds are in place, ready for the plaster.
Lower left: The plaster cast mold halves (with natches and spacers glued into the embeds). I used a heat gun to remove the PLA prints cleanly (to preserve crisp corners).
Right: The halves fit together perfectly.
Projects |
Medalta Ball Pitcher Slip Casting Mold via 3D Printing
A project to make a reproduction of a Medalta Potteries piece that was done during the 1940s. This is the smallest of the three sizes they made. |
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