You mix 10 % clay with 90 % quartz sand, fill a wooden box 1/3, then insert your wax model which includes a funnel, then fill the rest of the box with more clay and quartz sand. After heating to about 90 °C, the wax will melt and flow out of a hole in the bottom. Then you can cast aluminum from the top.

Except I want to do this with 3D printed plastic, not wax. What material would be suited for this?

  • $\begingroup$ Have you seen this question? $\endgroup$
    – 0scar
    Jan 30, 2023 at 10:51
  • $\begingroup$ Great answers, thank you. So either get a resin printer and directly print wax (expensive), or print a negative and cast paraffin wax into it after heating to 50C $\endgroup$
    – AzulShiva
    Jan 30, 2023 at 11:15
  • $\begingroup$ You're welcome, does this previously shared question answer your question? If so, we can mark it a duplicate! $\endgroup$
    – 0scar
    Jan 30, 2023 at 11:18
  • $\begingroup$ Sure, you can close the question $\endgroup$
    – AzulShiva
    Jan 30, 2023 at 11:57


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