Following experiments with a homemade plastic injection molding machine, the zeitgeist led me to construct and experiment with an aluminum metalcasting foundry. Inspiration: https://www.instructables.com/id/Propane-Tank-Aluminium-Smelter-No-Weld/ Summary:   I had great initial success following the blog as a guide for building a casting foundry, but eventually I ran into far too many issues with the burner. At first,…