Preparing for lost wax casting, step 4: putting the flasks in a kiln to burn out any remaining wax and heat them up to casting temperature.
Feathered Gems Jewelry has documented the entire process of casting Braille charms for Seedlings Braille Books for Children.
Music: Ancient Airs & Dances Suite No. 2 Bergamasca by Respighi/ Dies Irae by Mozart