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Step 14Pouring the mold
The most self-explanatory step. Pick up your crucible with your tongs and pour the molten aluminum into your mold.
The aluminum has a smooth look to it's surface while it's still molten, but if you watch closely, you can see it start to crystallize.
Try not to pour from too high or the aluminum will crush the detail out of the mold.
Again, I apologize for the lack of videos, I'll try to upload some soon.
Here's a pic of the finished product. (I didn't use enough aluminum) :(
The aluminum has a smooth look to it's surface while it's still molten, but if you watch closely, you can see it start to crystallize.
Try not to pour from too high or the aluminum will crush the detail out of the mold.
Again, I apologize for the lack of videos, I'll try to upload some soon.
Here's a pic of the finished product. (I didn't use enough aluminum) :(
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but hes, you could use a burnable material.... look up lost wax casting. same thing, basically, just without the sand.
==========================================================note:
sand casting wouldn't work so well with jewelry, though..... unless you have extremely fine sand, your detail level will be degraded, cuz your detail is restricted to the size of the grains of sand. if it's course, it will leave pits and bumps in the surface of your jewelry.
they would pretty much do sand casting, however they would use foam, like styrefoam, that they carved into shape, and just pour the molten metal onto the sand. i don't think they even made sprue. of course, i think they used iron sand..... may be important....
the downside to this is that the metal was kind of pitted.