Yes and no. (I read all the comments.) I watched a few of these styles of videos, just so I had an idea of all what was involved. (In my down time, I like to learn.) Initial investment can be big or small, up to you. Think like a Devil's Forge, expensive. There's other ways, like an acetaline torch for melting your metals. You'll need something to melt in, too. Purity of other metals and separating those can be expensive, too. Cupellation is one thing, but separating gold from silver, platinum, etc. you'll need to know how and acids, how to neutralize the acids and glass and so on. All this is DANGEROUS as fk. Red hot, liquid metals can explode when they hit moisture. SO HEAT YOUR MOLDS. DO NOT EVER SKIP THIS STEP. (Sand can hold moisture, too, store it properly.) Then there's the sand you'll be casting in. There's all different kinds of sand and different grain sizes. (You can make your own, but again, get educated about what your doing first.) Protect yourself. Leather apron, gas mask for metal vapers, heat proof gloves, proper boots, etc. Free metals for melting can be found on the side of the road on garbage day. Stop and grab them, dissemble and boom, free metals. It's considered an art form, btw. For instance, poured silver can go for about $50 per Troy ounce. Good luck if you try it. Personally, I'd start with bismuth. Super interesting metal. Super dense and it crystalizes as it cools. Fascinating stuff.