It's been almost 20 years since I've done that and when I did it I only did it twice in a classroom. At the college I went to it was required that we learn to weld, smelt, and cast for the Mechanical Engineering program. I've applied the welding to my project but not the casting nor the smelting.
What is the core made of again? I don't remember. I know it's sacrificial but for the life of me I can't recall what the material was.
Thanks for the video. A whole lot came back to me watching it.
