Induction furnace

https://www.youtube.com/watch?v=pVYMLnXW9uo
https://www.youtube.com/watch?v=txw6YTetpK0 induction furnace by Zerolabs. 
https://www.youtube.com/watch?v=JtcLuPsnkXs induction furnace 3kwh 
http://www.mindchallenger.com/inductionheater/ , https://www.youtube.com/watch?v=fRyksa-7Bcc
=== Grant Thompson ===
https://www.youtube.com/watch?v=d5pGN6pqkyY electrical oven transform . 7mil views
https://www.youtube.com/watch?v=VTzKIs19eZE electric arc furnace same up. How to hack flashlight batteries and a fire brick, into a desktop arc reaction chamber. ...For hobby metal melting, and for science!
Some quick links to a few of the materials I used:
[✓] Lantern battery: http://amzn.to/2cgnKxN
[✓] Forstner Bit: http://amzn.to/2c1Ja3V
[✓] 3/8 Drill bit: http://amzn.to/2cgl6rL
=== links ===
Metal casting
http://www.lowtechmagazine.com/what-is-the-embodied-energy-of-materials.html
Category:Induction heating
Category:Metal casting