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So, some background. I did two years of electrical engineering at university before switching to computer science. As a result, I know a lot of engineers. One of them built himself a furnace for melting down aluminium cans, which we've used a few times with steel crucibles - unfortunately, steel crucibles don't last very long as they get pretty hot and deform easily. Yesterday we went out wombling (collecting bits of litter that could be useful, for non-brits) and got a boxful of crushed aluminium cans which we'd hoped to melt down using a fancy new graphite crucible. Unfortunately the fancy new graphite crucible had been left outside in england, so it was soaked through. (if you're wondering, I'm holding the camera). Ah well, you live and learn. Fair warning, there's some swearing in the video. I'm still hoping to do my first casting soon, though a new crucible will take a couple of days. The ultimate goal is to make my own VRM/VRAM heatsinks, and hopefully my own (admittedly fairly rubbish if they're aluminium) DICE/LN2 pots as all the commercial ones are really expensive by my standards but I want to move up to apprentice asap after I graduate from rookie league. If anyone's interested I'll happily write up the full process from furnace making to casting once I have something to show for it worth writing about