> lost wax casting, of course, since 3D printing wasn't a thing
Just to nitpick, even with 3D printing these days, the process is still called lost wax casting. The printer prints a wax version of the model, and then the plaster is poured around it to make a mold and the wax model is melted out.
The only difference is that the wax model is made by a 3d printer rather than by hand.
I've seen: 3d print a part (resin printer), make a mold from the 3d printed part with modeling clay or whatever, cast wax in the mold and then sand cast metal with the wax casting.
I think the 3d printed part wouldn't burn away as cleanly as the wax that is designed for that purpose. Probably faster if you want more than one as well.
Just to nitpick, even with 3D printing these days, the process is still called lost wax casting. The printer prints a wax version of the model, and then the plaster is poured around it to make a mold and the wax model is melted out.
The only difference is that the wax model is made by a 3d printer rather than by hand.