metal casting of nuts with self made gypsum molds

This Video is about metal casting of some nuts with self-made gypsum molds. I'll show some chemical formulas about the hardening of plaster to gypsum. And you will see a phase diagram on tin and lead melting points. ======= Materials list ============= Plaster: regular “plaster of Paris” from DIY market. Metal: I use “LSN 30” that is typically used as soft-solder for water pipes, rain pipes, car repair. Can be bought in any DIY market. Any other solder does also work but is typically more expensive. Burner: self-made Ethanol burner. =======Video production ========== Video shot with regular smart phone cam and app Video compilation: https://www.openshot.org/ Soundtrack: https://mixkit.co/ =======Safety=================== Be safe and know what you are doing Hot metal can cause severe burn Hot metal in contact with any kind of humidity can cause explosions Lead is potentially poisonous material. Although lead metal and its oxides can practically not be absorbed through skin - any kind of dust that might be inhaled is dangerous. So preferably use lead-free solder and pay attention to any dust that can be inhaled. =======contact================== If you’d like to get in contact: [email protected] ===============================