I have been casting for a few months now, and still having trouble melting copper. I have a long thread started in the casting section titled Delf Clay. I have worked out most of my problems, but still can't seem to melt a few ounces of copper reliably. It just seems to melt into a blob, and then stays that way. My last attempt I tried for about 1.5 hours but was ultimately a failure. So, I ask you, is the anatomy of my foundry the problem, or am I being too impatient? Or could it be something completely different? Sorry if this seems to be a repost of the same questions I asked in previous threads, I just want to get to the bottom of this. attached are pics of my foundry. You'll see it has an open face, which I suspect is the cause of my problems, but I'm no expert. Clicking the link will take you to my facebook group where I've been posting pics of my work. There is also a short video of my foundry in action.