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Of course, this is far too large to print in one piece on my Prusa MK4 printer so I sliced it in two and added flanges to clamp the halves together. There is quite a bit of stair-stepping artifacts on the 3D printed surface, I did not worry about smoothing it and it did not prevent casting two plaster molds. No mold soap was even needed, the plaster molds came out using compressed air. The long side rails did require some stabilization (they were flexing with the weight of the plaster).
Again, this method was only needed because I did not have a printer big enough to print the mold in one piece. Later, I did get one.
Glossary |
Side Rails
Side rails are the containment used when pouring plaster molds. We 3D-print these to custom fit each mold. |
Projects |
Beer Bottle Master Mold via 3D Printing
A project that took several years of failures and blind allies and is finally coming together - so much simpler than expected! |
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