I did this at TechShop Menlo Park. http://www.techshop.com
I'll let you into a secret for the magic, alchemical process of melting and pouring metal for numerous types of casting (sand casting, lost wax casting, investment casting, etc.) Pure molten fun!
Please read instructables on safety gear for casting, proper casting tools and how to operate a casting furnace before you get to this one. Do not attempt to do this alone, without proper tools or without thorough understanding of their use.
Step 1: Load aluminum scraps into the crucible
Find some aluminum scraps. Cut them down to pieces on the vertical bandsaw with the course aluminum blade. Make sure to wear safety goggles. The crucible is made of either clay graphite like the one we used or silicon carbide to withstand temperature.